A buffalo of mass 300kg is moving from rest. After 15sec its speed changed to 36km/hr. Find the force , acceleration and momentum.
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Mass of buffalo = 300 kg
initial velocity,u = 0 m/s { as in rest }
After time , t = 15 s
final velocity, v = 36 km/h = 36×5/18 m/s
or, v = 10 m/s
Let a be the acceleration .
As we know ;
v = u + a t
so, 10 = 0 + a × 15
so, a = 10/15 = 2/3 m/s^2
# Hence acceleration = 2/3 m/s^2 #
____________________________
As Force = m a
# so, Force = 300 × 2/3 = 200 N #
___________________________
As momentum = m v
# so, initial momentum = 300×0 = 0 kg m/s
_________________________________
so, final momentum = 300×10 = 3000 kg m/s #
__________________________________
initial velocity,u = 0 m/s { as in rest }
After time , t = 15 s
final velocity, v = 36 km/h = 36×5/18 m/s
or, v = 10 m/s
Let a be the acceleration .
As we know ;
v = u + a t
so, 10 = 0 + a × 15
so, a = 10/15 = 2/3 m/s^2
# Hence acceleration = 2/3 m/s^2 #
____________________________
As Force = m a
# so, Force = 300 × 2/3 = 200 N #
___________________________
As momentum = m v
# so, initial momentum = 300×0 = 0 kg m/s
_________________________________
so, final momentum = 300×10 = 3000 kg m/s #
__________________________________
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