Answer:
Mechanical Advantage is 2
Explanation:
M.A = length of ramp / height of ramp
= 2/1
=2
The water balloon must accelerate m/s2.
Answer:
3.1 m/s²
Explanation:
Given:
Mass of the balloon (m) = 11.4 g = 0.0114 kg ( 1 kg = 1000 g)
Force acting on the balloon (F) = 0.035 N
Acceleration with which the balloon must be hit (a) = ?
Now, we know that, from Newton's second law, net force acting on an object is equal to the product of its mass and acceleration.
Therefore, framing in equation form, we have:
Rewriting in terms of acceleration 'a', we get:
Now, substitute the given values and solve for 'a'. This gives,
Therefore, the acceleration of the water balloon to reach the target must be equal to 3.1 m/s².
Answer:
3.1
Explanation:
e2020
Running the lid of a tight-fitting jar under hot water causes it to expand due to thermal expansion, which makes it easier to remove from the jar.
When the lid of a tight-fitting jar is run under hot water, it undergoes thermal expansion due to the increase in temperature. The expansion of the lid causes it to slightly loosen, making it easier to remove from the jar. This happens because metals have higher coefficients of expansion than glass, so the lid expands more than the jar itself.
#SPJ12
Speed is constant.
Speed has direction and velocity.
Speed is measured over time.
The statement about speed and/or velocity which is true is: Velocity has both speed and direction.
Velocity refers to the rate of change in displacement (distance) with time. Velocity is a vector quantity and this simply means that, it has both magnitude (speed) and direction.
Mathematically, velocity is given by the formula;
On a related note, speed is a scalar quantity because it has magnitude but no direction.
However, both speed and velocity are measured in meters per seconds.
In conclusion, the relationship between speed and velocity is that velocity has both speed and direction.
Read more: brainly.com/question/17742679
Answer:
Velocity has both speed and direction.
Explanation:
speed is a part of velocity