a Mac Laren:625hp; 1375kg
a Bugatti 1100hp; 2136kg
and a 1350hp Nissan GTR; 1650kg
Which car will be able to reach 320km/h before the motorcycle?
The Data:
The power associated with one horsepower is 735.5 watts
The only vehicle capable of outpacing the Ninja H2R out of the box was the severely tuned, 1,350 horsepower SPE Nissan GT-R, which caught and passed the superbike at the.
Slowly coming off the line, the biker eventually catches up with and surpasses the Veyron.When the H2R triggers the speed camera at 194.5 mph—nearly 15 mph faster than that of the Bugatti—it is still harsh in acceleration.
The bike easily overtakes the Lamborghini after another strong start from the latter.In comparison, the Huracan needs 9.6 seconds to finish the quarter mile.
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Answer: 3.4s
Explanation:
There are three stages in the motion of the ball, so you have to calculate the times for every stage.
1) Ball dropping from 9.5m: free fall
d = Vo + gt² / 2
Vo = 0 ⇒ d = gt² / 2 ⇒ t² = 2d / g = 2 × 9.5 m / 9.81 m/s² = 1.94 s²
⇒ t = √ (1.94 s²) = 1.39s
2) Ball rising 5.7m (vertical rise)
i) Determine the initial speed:
Vf² = Vo² - 2gd
Vf² = 0 ⇒ Vo² = 2gd = 2 × 9.81 m/s² × 5.7m = 111.8 m²/s²
⇒ Vo = 10.6 m/s
ii) time rising
Vf = Vo - gt
Vf = 0 ⇒ Vo = gt ⇒
t = Vo / g = 10.6 m/s / 9.81 m/s² = 1.08 s
3) Ball dropping from 5.7 m to 1.20m above the pavement (free fall)
i) d = 5.7m - 1.20m = 4.5m
ii) d = gt² / 2 ⇒ t² = 2d / g = 2 × 4.5 m / 9.81 m/s² = 0.92 s²
⇒ t = √ (0.92 s²) = 0.96s
4) Total time
t = 1.39s + 1.08s + 0.96s = 3.43s ≈ 3.4s
Show work clearly and completely (including formulas, calculations, units, etc. as done in class.)
The problem states that the ball is thrown 20 meters downrange. Since the ball is thrown horizontally, we can assume that the initial vertical velocity is zero. The only force acting on the ball is gravity, which causes it to accelerate downwards at a rate of 9.8 m/s² 1.
To calculate the pitching speed, we need to find the time it takes for the ball to travel 20 meters horizontally. Unfortunately, this information is not provided in the problem statement. Therefore, we cannot calculate the pitching speed.
B. work
C. gravity
D. mass
The equation E = mc² relates energy and mass and the correct option is option D.
The equation was formulated by Albert Einstein as part of his theory of special relativity. In this equation, "E" represents energy, "m" represents mass, and "c" represents the speed of light in a vacuum, which is approximately 3 x 10⁸ meters per second. The equation states that energy is equal to the mass of an object multiplied by the square of the speed of light.
This equation demonstrates the equivalence between mass and energy, suggesting that mass can be converted into energy and vice versa. It is a foundational equation in physics and has significant implications in understanding the relationship between matter and energy.
Thus, the ideal selection is option D.
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The maximum distance that a ball can be thrown at a speed of 20 m/s depends on the angle at which the ball is thrown. In ideal conditions and at a 45-degree angle, the theoretical maximum distance is approximately 40.57 meters.
The question is asking about the maximum distance you can throw a ball given an initial speed, which is a topic in Physics known as projectile motion. In an ideal condition, where air resistance is ignored, the maximum distance a projectile can travel is achieved when it is launched at an angle of 45 degrees.
However, we are missing a piece of information in this situation, which is the launch angle. Without knowing the angle at which the ball is thrown, we cannot accurately calculate the maximum distance. Theoretically, if the ball is thrown at an angle of 45 degrees, the distance (d) can be obtained using the formula for the range of a projectile: d = (v^2)/g, where v is the initial speed and g is the acceleration due to gravity. Substituting the value, d = (20^2)/9.81 = 40.57 meters. But this is an estimation and the value could change according to the actual circumstances when the ball is thrown.
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Express your answer to two significant figures and include the appropriate units.
The minimum speed with which the captain Sam Brady of the US continental army had to run off the edge of the cliff to make it safely to the far side of the river is or or or .
Further explanation:
As Captain Sam Brady jumps from the cliff, he moves in two dimension under the action of gravity.
Given:
The height of free fall of the captain Brady is or .
The horizontal distance moved by the captain Brady is or .
Concept:
The time required to free fall of a body can be calculated by using the expression given below.
……. (1)
The displacement is considered negative because the captain is moving in vertically downward direction.
Here, is the distance covered by the body in free fall, is the initial velocity of the object, is the acceleration due to gravity and is the time taken in free fall of a body.
As the Caption jumps off the cliff, he has his velocity in the horizontal direction. The velocity of the captain in vertical direction is zero.
Substitute for in the equation (1) .
Rearrange the above expression for .
…… (2)
Converting acceleration due to gravity in .
Substitute for and for in equation (2) .
Therefore, the time taken by captain to free fall a height is .
In the same time interval captain has to move in horizontal direction. The acceleration is zero in horizontal direction. So, the velocity will be constant throughout the motion in the horizontal direction.
The distance travelled by captain in the horizontal direction is given by,
Rearrange the above expression for .
…… (3)
Here, is the distance travelled in horizontal direction, is the velocity of the captain and is the time.
Substitute for and for in equation (3) .
Thus, the minimum speed with which the captain Sam Brady of the US continental army had to run off the edge of the cliff to make it safely to the far side of the river is or or or .
Learn more:
1. Energy density stored in capacitor brainly.com/question/9617400
2. Kinetic energy of the electrons brainly.com/question/9059731
3. Force applied by the car on truck brainly.com/question/2235246
Keywords:
Free fall, projectile, gravity, 1780, Brady’s, leap, Captain, Sam Brady, US, continental army, enemies, Ohio’s, Cuyahoga river, 22 ft, 6.7 m, 20 ft, 6.1 m, minimum speed, run off, edge, cliff, safely, far side, river, 19.71 ft/s, 6 m/s, 6 meter/s, 5.99 m/s, 599.8 cm/s.
Using the principles of projectile motion from Physics, Captain Sam Brady would need to run with an initial horizontal speed of approximately 19.64 ft/s to reach the far side of the river.
This problem can be solved using basic Physics, specifically projectile motion. Here, Captain Sam Brady had to run off the edge of the cliff to make it safely to the far side of the river which is 22 ft away while falling 20 ft down. We assume that he jumps horizontally (i.e., his initial vertical velocity is 0).
Firstly, we calculate the time for the vertical fall. Using the equation t = sqrt (2h/g) where h is height and g is the acceleration due to gravity (32.2 ft/s²), we get time t ≈ 1.12s (rounded to two significant figures).
Next, we can use this time to figure out his initial horizontal velocity needed. The equation v = d/t where v is velocity, d is distance, and t is time gives us v ≈ 19.64 ft/s (rounded to two significant figures).
So, Captain Sam Brady would need to run with an initial horizontal speed of approximately 19.64 ft/s to make it safely across the river.
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