Answer:39.88 rad/s
Explanation:
Given
mass of cylinder m_1=18 kg
radius R=1.7 m
angular speed
mass of dropped at r=0.3 m from center
let be the final angular velocity of cylinder
Conserving Angular momentum
Answer: 2.25 J
Explanation: Kinetic energy is the energy possessed by an object by virtue of its motion.
m= mass of object= 20 g = 0.02 kg (1 kg= 1000 g)
v= velocity of object= 15 m/s
Answer:
Explanation:
The equation of force is
F = 4 sin 4 t
Compare with the standard equation
f = A sin wt
where, w is the angular frequency and A is the amplitude.
Now
w = 4 rad/s
Let the time period is T.
the relation for the time period is
the time period is defined as the time taken by the body to complete one oscillation.
So, the velocity is zero at the extreme points where the object is at time, T/4 and its odd T/2, 3T/4, 3T/2, etc.
So, the velocity is zero at time
To determine the position of the mass and the times when the velocity is zero in a mass-spring system.
To determine the position of the mass at any time, we need to solve the equation of motion for the mass-spring system. The equation is:
mx'' + kx = Fext
where m is the mass, x is the displacement of the mass from its equilibrium position, k is the spring constant, and Fext is the external force. We can solve this differential equation to find the position of the mass as a function of time.
To determine the first four times at which the velocity of the mass is zero, we need to solve for the velocity of the mass, which is given by:
v = x'
We can find the times at which the velocity is zero by finding the values of t for which x' = 0.
#SPJ12
When swimming, you are at rest relative to the water and moving relative to the sides of the pool.
When riding a bike, you are at rest relative to the bicycle and moving relative to the road
B. miners getting trapped underground
C. oil spills that pollute oceans and beaches
O D. pollutants in the groundwater after drilling
Answer:
i think it is A
Explanation
2.0 meters. What is the speed of the object?
(1) 8.0 m/s (3) 16 m/s
(2) 2.0 m/s (4) 4.0 m/s