Q. 5 B4.1( 25 Votes )

# Solve the ProblemsA force of 25 Newton is applied on an object of mass 10 kg moving with a velocity of 5 ms-1. If the object gains a velocity of 10 ms-1, calculate the time taken.

Information from the question:

Mass of the object = 10 kg.

Initial velocity of the object = 5 ms-1.

Final velocity of the object = 10 ms-1.

Force used to change the velocity = 25 Newton.

As we know from Newton’s second law that,

Where F is the force require to produce acceleration of ‘a’ on a body of mass ‘m’.

So, this implies acceleration

Hence from acceleration we will calculate time taken. As acceleration is change in velocity in per unit time. So for acceleration,

Where v is final velocity, u is initial velocity and t is time taken by the object.

Time taken by object for producing acceleration,

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