Question

A body of mass 200 g is moving with a velocity of 5ms^-1.if the velocity of the body changes yo 17ms^-1.calculate the change in the liner momentum of the body

Answer 1

Answer:

2.4kg m/s

Explanation:

m =200g =0.2kg v1 =5m/s

m =200g =0.2kg v1 =5m/s v2 =17m/s

momentum1 =m×v1 =0.2kg × 5m/s =1kg m/s

momentum2 =m×v2 =0.2kg ×17m/s

=3.4kg m/s

NOW,

change in momentum = momentum2 - momentum1

= 3.4kg m/s - 1 kg m/s

= 2.4kg m/s Ans

Answer 2

Answer:

2.4 Ns

Explanation:

V1 = 5 ,V2= 5

m=200g

=200÷1000

=0.2

p= mv

v= v2 -v1

=17-5

=12m/s

p= m×v

0.2 ×12

=2.4 Ns

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