Answer:
Speed of sound is 30.91m/s
Explanation:
Speed is given by:
Speed = distance travelled / time taken
Given:
Distance travelled = 1020m
Time taken = 33seconds
Speed = 1020m/33s
Speed = 30.91m/s
D. 128.25 because force=mass x acceleration
It was <em>(1/2) (Net force on the cart) m/s²) </em>.
Answer:
v=3.649 m/s
Explanation:
Lets start with the force of gravity on the elevator.
But the friction clamp opposes this with a force of 17000 N
So the Net force on the elevator is
Kinetic Energy
The motion will be describe
original Kinetic energy + work done = final kinetic energy + spring energy
Explanation:
Acceleration. Angular acceleration: Is the rate of change of the angular velocity of a body with respect to time.
Force. Torque: Is also called rotational force, since an applied torque will change the rotational motion of a body.
Mass. Moment of inertia: It is the resistance that opposes a body to rotates.
Work. Work: In a rotational motion, the work is done by the torque.
Translational kinetic energy. Rotational kinetic energy: is the kinetic energy due to the rotational motion of a body.
Linear momentum. Angular momentum: Represents the quantity of rotational motion of a body.
Impulse. Angular impulse: Is the change in angular momentum of a body.