Answer:
Explanation:
change in momentum = m ( v - u ) ; m is mass , V is final velocity and u is initial velocity .
= 250 ( 28 - 6 )
= 5500. N.s
for calculating magnitude of force we shall apply the concept of impulse
Impulse = F X t = m( v-u ) ; F is force applied for time t .
F x 60 = 5500
F = 91.67 N .
force exerted = 91.67 N .
Change in momentum is 5500 N/S
The magnitude of the force exerted on the Scooter is 91.67 N
The calculation can be done as follows
The formula for change in momentum is;
m(v-u)
250(28-6)
250(22)
5500 N/S
The formula for magnitude of the force is
F ˣ 60= 5500
F= 5500/60
F= 91.67 N
Hence the magnitude of force is 91.67 N and the change in momentum is 5500 N/S
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