The product of force and the time interval for which it acts is known as:
Impulse
Impulse is defined as the product of the force applied to a body and the time interval for which that force acts: \(J = F \times \Delta t\).
By Newton's second law, force equals the rate of change of momentum, \(F = \dfrac{\Delta p}{\Delta t}\), so multiplying both sides by \(\Delta t\) shows that impulse equals the change in momentum, \(J = \Delta p\).
Momentum itself is mass times velocity, work is force times displacement, and power is the rate of doing work — none of these match force multiplied by time, which specifically defines impulse.
A body remains at rest or in uniform motion unless an external force acts on it. This is stated by :
Which of the following physical quantity is responsible for opening the lid of a bottle?
The use of lubricants makes the surface-
If a box of mass 25 kg is pushed 15 m by a force of ‘F’ N and work done in the process is 480 J. Find F:
If an object moves in a circular path with uniform ________, its motion is called uniform circular motion
Which of the following is an example of contact force?