Question

A body of mass 1 kg is moving with velocity of 5 m/s along x-axis in the x-y plane. on it a force of 10 N is applied at an angle 60 to the x-axis.find the net velocity of body after 3 secs

Answer 1

Using F=M X A(Newton's second law)

We get,2= 1 X A which means that A or acceleration is 2 M/s^2

From the following equation,

V =U+AT(1 st equation of motion)

A=Acceleration ,U=Initial speed and T=Said time

Putting the values in the equation we get,

V= 8 + 2 X 4

V =16 M/s