Question

A sedan car of mass 200kg is moving with a certain velocity . It is brought to rest by the

application of brakes, within a distance of 20m when the average resistance being offered to it is

500N.What was the velocity of the motor car?​

Answer 1

Answer:

Given,

Mass = 200kg

Distance = 20m

Force = 500N

To find:-

Velocity of the motor car

By applying F = ma

a = f/m

= 500/200

= 2.5m/s^2

By applying v^2-u^2=2as

v^2 - 0^2 = 2×2.5×20

v^2 = √100

v = 10m/s.

Answer 2

$\huge{\dag} \: {\underline{\sf{\purple{\mathbf{ Answer \ Is \ in \ Attachment }}}}}$