Advertisements
Advertisements
Question
One joule is the amount of work done when a force of ......... moves a body through a distance of .......
Solution
1N, 1m in its own direction
APPEARS IN
RELATED QUESTIONS
State the condition when the change in the momentum of a body depends only on the change in its velocity.
Is moment of force a scalar or a vector?
State two factor on which moment of force about a point depends.
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
State two factors affecting the turning effect of a force.
Write the expression for the moment of force about a given axis.
On a see-saw, two children of masses 30 kg and 50 kg are sitting on one side of it at distance 2 m and 2.5 m respectively, from its middle, where should a man of mass 74 kg sit to balance it?
Assertion & Reasoning
- Assertion: The sum of the clockwise moments is equal to the sum of the anticlockwise moments.
- Reason: The principle of conservation of momentum is valid if the external force on the system is zero.