First Law of Motion
Trending Questions
Q. Change in speed or the direction of speed of an object would continue as long as unbalanced forces are applied on it.
- True
- False
Q. A pulley system has a velocity ratio 3 and an efficiency of 80%. Draw a labelled diagram of this pulley system. Calculate the mechanical advantage of the system
Q.
Which law states that when a carpet is beaten with a stick, dust will come out?
Third law of motion
Newton's law cannot explain this behaviour
First law of motion
Second law of motion
Q. Can reflection of light be related to Newtons third law of motion, "Every action has an equal and opposite reaction" ?
Q.
Some part of force is utilized to deform the body
Non-rigid objects do no obey Newton’s second Law of motion
Non-rigid objects require a higher force to start motion
The mass of non-rigid objects is not uniform
Non-rigid objects do not offer equal reaction
Q. A body is in equilibrium under the influence of a number of forces. Each force has a different line of action. The minimum number of forces required is :
- 2, if their lines of action pass through the centre of mass of the body
- 3, if their lines of action are not parallel.
- 3, if their lines of action are parallel.
- 4, if their lines of action are parallel and all the forces have the same magnitude.
Q. Choose the correct option with respect to Newton's first law of motion among the following.
- An object in uniform motion stays in uniform motion unless acted upon by an unbalanced force.
- An object in motion may come to rest without any external force acting on it.
- An object at rest can move without any external force acting on it.
- It is also called the law of gravitation.
Q. You are thrown ahead when your car suddenly comes to a halt and you are thrown backwards when your car rapidly accelerates. Which law of Newton is involved in this?
- Second law
- Third law
- Law of gravitation
- First law