Physics
A stone of mass 500 g is thrown vertically upwards with a velocity of 15ms-1.
Calculate:
(a) the potential energy at the greatest height,
(b) the kinetic energy on reaching the ground
(c) the total energy at its half waypoint.
Related Questions
A pendulum is oscillating on either side of its rest position. Explain the energy changes that take place in the oscillating pendulum. How does the mechanical energy remain constant in it? Draw necessary diagram.
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20ms-1. Calculate the maximum potential energy it gains as it goes up.
A metal ball of mass 2kg is allowed to fall freely from rest from a height of 5m above the ground.
- Taking g = 10ms-1, calculate:
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- the kinetic energy of the ball just before it hits the ground?
- What happens to the mechanical energy after the ball hits the ground and comes to rest?
- Taking g = 10ms-1, calculate:
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