Question

A body of mass 100 kg is moving with a
velocity of 10 m/s. It is stopped at a distance
of 100 m by a resisting force. Calculate the
force of resistance.
​

Answer 1

Answer:

force = mass × acceleration

Explanation:

mass = 100 kg

acceleration = v-u / t

v=0, u= - 10m/ s, t = 10 sec

acceleration = -1

force = 100× - 1

= 100 kg m/s^2

Answer 2

Answer:

50N

Explanation:

Here

initial velocity u = 10 m/s

final velocity v= 0

from third equation of motion

v^2- u^2 = 2as

0- (10)^2 = 2a(100)

-100=200a

a = -0.5 m/s^2

F=ma = 100 *(0.5)

= 50