A football of mass 0.4kg, initially at rest is kicked by a force of magnitude 1000N for 10ms. the velocity of the ball after the kick expressed as an integer in m/s is
Answers
Given : A football of mass 0.4kg, initially at rest is kicked by a force of magnitude 1000N for 10s.
To Find : the velocity of the ball after the kick
Solution:
F = 1000N
m = 0.4 kg
F = ma
=> 1000N = 0.4 (a)
=> a = 2500 m/s²
initially at rest
u = 0
a = 2500 m/s²
t = 10 sec
V = u + at
=> V = 0 + 2500(10)
=> V = 25000 m/s
velocity of the ball after the kick expressed as an integer in m/s is = 25000
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Given : A football of mass 0.4kg, initially at rest is kicked by a force of magnitude 1000N for 10s.
To Find : the velocity of the ball after the kick
Solution:
F = 1000N
m = 0.4 kg
F = ma
=> 1000N = 0.4 (a)
=> a = 2500 m/s²
initially at rest
u = 0
a = 2500 m/s²
t = 10 sec
V = u + at
=> V = 0 + 2500(10)
=> V = 25000 m/s
velocity of the ball after the kick expressed as an integer in m/s is = 25000