Question

An object of mass 100 kg is accelerated uniformly from a velocity of 5 metre per second to 8 metre per second in 6 seconds calculate the initial and final momentum of an object also find the magnitude of the force exerted on the object

Answer 1

Answer:

50 Newtons

Explanation:

m= 100kg

u= 5m/s

v= 8m/s

t= 6sec

Pi= ?

Pf= ?

N= ?

Pi= mu

  = 100 x 5

  = 500kgm/s

Pf= mv

   = 100 x 8

   = 800kgm/s

a= v-u/t

 = 8-5/6

 = 3/6

 = 0.5 m/s^2

F= ma

 = 100 x 0.5

 = 50N