1.
A force of 30 N acts on a body of mass 10 kg. The acceleration produced is
2.
The friction acting on a body before it starts moving is called
4.
The coefficient of friction is
5.
The frictional force depends upon
6.
The unit of coefficient of friction is
7.
If a body is moving with constant velocity on a rough horizontal surface, then
8.
A block of mass 5 kg is pulled horizontally by a force of 20 N on a frictionless surface. The acceleration is
9.
An object of mass m is in a lift accelerating upward with acceleration a. The apparent weight is
10.
A lift moves downward with acceleration equal to g. The apparent weight becomes
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