SSC
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What is the potential energy of a 5 N object that is raised 5 m in the air?
|
|
5 J
|
|
|
1 J
|
|
|
25 W
|
|
|
25 J
|
Explanation:
Detailed explanation-1: -Potential energy at 5 m: Thus, the potential energy of the object at the height of 5 m is 1960 J and its kinetic energy will be zero.
Detailed explanation-2: -An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic energy when it is halfway down. ∴ W = 40 × 5 × 9.8 = 1960 J.
There is 1 question to complete.