After 40 m after 20 minut
again
Rolling a drum is work
In the diagram Roshan and Rohan both are carrying
same load for same distance but in different times. Now
answer the following questions.
Diagrammatic question.
A
Roshan
i. Who of them does more work? Why?
ii. Who of them has more power? Why?
Roshan

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative