A car of mass 1000 kg is moving with a velocity 20m /s on a horizontal straight road. If the driver applies brakes to produce a constant breaking force of 5000 Newton, the acceleration of the car i s ..... m /`s^(2)`.

Options

A. `-5`
B. 50
C. 5
D. none

Answer

A

Explanation

From Newton.s second law of motion
F= ma Here F= breaking force
`=-500 N`
Acceleration `a= (F )/( m ) = (5000)/( 1000) =0 5 ms^(2)`