Question

An object was thrown at a certain angle to the ground moved in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object?

Answer 1

Answer:

0J

Explanation:

we know, work = mgh

h is the displacement in the y direction which is 0

so, w = 0mg

w=0J

Answer 2

Explanation:

:Yes, a pair of bar magnets with keepers on two ends will act as a magnet. A keeper is a soft iron or steel piece which when kept across the poles of the magnet behaves like a temporary magnet.

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