1.
A net force of 5000 N gives a certain acceleration to a 2000 kg car. How much net force is required to give the same acceleration to a 4000 kg truck?
2.
2. K gm/s² is the unit of
3.
A car is travelling at a constant speed of 25m/s
4.
The force of gravity acting on an object is called
5.
The unit of change in momentum is
7.
A cannon after firing recoils due to
8.
If a body is moving alone a constant speed, it may be assumed that
9.
The rider on horse falls back when horse start running, all of a sudden change because
10.
If A and B are two objects with masses 6 kg and 34 kg respectively, then
11.
Swimming is possible on account of
12.
The momentum of an object depends on
13.
Newton’s third law is equivalent to the
14.
A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newton’s
15.
A body whose momentum is constant, must have constant
16.
Choose the correct option
17.
Which of the following has the largest inertia
18.
How much force acts on a body whose momentum(p) is constant with time(t) ?
19.
A football has lesser inertia than a stone of the same size because
20.
Before firing the system of bullet and gun having momentum
21.
When two objects are moving towards each other then the total momentum is
22.
When an object undergoes acceleration
23.
When a force of 1 N acts on an object, the object will be accelerated in the direction of force with an acceleration proportional to:
24.
Knowing mass of an object and force acting on it, we calculate its
25.
If a constant force acts on a body initially at rest, the distance moved by the body in time t is proportional to
26.
The momentum of a body of given mass is proportional to its
27.
An unbalanced force acts on a body. The body
28.
Force measures rate of change of
29.
First law of motion defines
30.
Newton’s second law of motion gives us a measure of
31.
The SI unit of force is
32.
SI unit of momentum is
33.
The momentum of a body of mass 10 kg moving with a velocity of 5 m/s is
34.
Force that can produce an acceleration of 2 m/s² in a body of mass 25 kg is
35.
He rate of change of momentum of a body is a measure of ……..acting on the body
36.
Two bodies of equal masses moving with equal velocities in opposite directions collide. The resultant velocity of the combination is
37.
A gun of mass 5 kg fires a 50 gm bullet with a velocity of 200m/s. the recoil velocity of the gun is
38.
A coin pushed on a table stops because
39.
A father has mass 60 kg and the mass of his son is 30 kg , the ratio of their inertia is
40.
The change in the momentum of the body is 0.01 s is 10 kg m/s. the force acting on the body is
41.
A book of weight 10N is placed on a table, the force exerted by the surface of the table on the book will be
42.
A no of forces acting on a body changes velocity of the body. The force can’t be
43.
A force of 5 Newton gives a mass m1 an acceleration of 8 m/s² and a mass m2 an acceleration of 24 m/s². what acceleration would it give if both the masses are tied together?
44.
A parrot is sitting on the floor of a closed cage which is in a boy’s hand. If the parrot starts flying in the cage with a constant speed the boy will feel the weight of the cage as
45.
A goal keeper in a game of football team pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to
47.
When we try to catch a coin in a moving car
48.
Action and reaction always act as pair
49.
The first law is known as
50.
Unit of gravitational force is
