Advertisements
Advertisements
प्रश्न
Define force.
उत्तर
It is defined as an external cause which changes or tends to change the state of rest or uniform motion of a body in a straight line.
APPEARS IN
संबंधित प्रश्न
With which physical quantity should the speed of a running bull be multiplied so as to obtain its momentum ?
Fill in the following blank with suitable word :
(a) ………………is a measure of the inertia of a body.
A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the velocity of the body.
Calculate the momentum of the following :
(a) an elephant of mass 2000 kg moving at 5 m/s
(b) a bullet of mass 0.02 kg moving at 400 m/s
Explain why, a person travelling in a bus falls forward when the bus stops suddenly.
The inertia of a moving object depends on :
Why does a ball thrown vertically upwards in a moving train , come back to the thrower's hand ?
Explain the following:
Why do fruits fall off the branches in the strong wind?
Multiple Choice Question. Select the correct option.
When you kick a stone, you get hurt. Due to which property this happens?
A heavy truck and bike are moving with the same kinetic energy. If the mass of the truck is four times that of the bike, then calculate the ratio of their momenta. (Ratio of momenta = 2:1)
