ques 2 please show me the solution
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this is a physical question or maths question
tiger002:
physics question
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momentum of car
= 400 * 10 = 4000kgm/sec
momentum of scooter = mv = 90 * 50 = 4500kgm/sec
- therefor momentum of scooter is 9/8 times more then car....
2. ist part: force = dp/dt
so force is directly proportional to momentum
the momentum of scooter is more so scooter will require more force
if distance is same.....
by eqn of motion...
s =- 1/2 at²---- 1
for deacceleration for car :
v- u = at
-10/t = a
similarly deacceleration of scooter
-50/t = A
by putting value of both deaccelerations simultaneously in eqn 1...
s = -1/2 *- 10/t *t²
s = 5t
or t = s/5 for car.....
and similarly
t = s/25 for scooter...
NOW Force = dp/dt
for scooter F,
F= 4500* 25/s
F= 112500/s
for car, f
f = 4000 * 5/s
f= 20000/s
clearly force for scooter is more in both cases:)
mark as brainly of helped
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