A car of mass 7000kg starts from rest and travels a distance 800m in 20s.The force acting on the car will be
2800N
28000N
8000N
24000N
A body of mass 500 g initially at rest is acted upon by a force 10 kgf for 10s,then the velocity acquired by the body is:
200 ms-2
100 ms-2
2000 ms-1
2000 ms-2
A body is moving with a constant speed in a circle which of the following is true?.
It has a constant velocity
It has an acceleration
Magnitude of velocity changes
Both magnitude and direction of velocity changes.
A ball of mass 100 g is moving with a velocity 10 ms-1. It is brought to rest after traveling a distance 5 m, by applying a resistive force. Then the retardation caused by the force is:
1 ms-1
10 ms-2
10 ms-1
- 10 ms-2
The velocity of a body of mass 5kg reduces from 10ms-1 to 5ms-1.What is the change in momentum of the body?
25kms-1
-25kgms-1
50kgms-1
-50kgms-1
With increase in mass , inertia of a body
increases
decreases
does not change
changes irregularly
If the weight of a body is 5 kgwt,what will be its mass?
0.5kg
9.8kg
5kg
4.9kg
The rate of change of linear momentum of a body is directly proportional to
mass of the body
gravitational force
external force applied to the body
acceleration produced
The moment of a force of 5 N about a point P is 2 Nm. Calculate the distance of point of application of the force from the point P.
4 m
0.4 m
2 m
0.2 m
