A boy punches a sheet of paper in mid air and brings it from rest up to a speed of 25 m per second in 0.005 seconds. (i)What acceleration is given to the paper?
(ii)If the mass of the paper is 3 gram, what force does the boy exert on it? (iii)How much force does the paper exert on the boy?
Answers
Answered by
1
Answer:
75 N
Explanation:
force=mass ×acceleration
=3×25
=75N
a = 5000 m/s & F = 15000 N
u = 0 m/s
v = 25 m/s
t = 0.005 s
v = u + a t
25 = 0 + (a) 0.005
a = 5000 m/s
F = ma
F = 3 x 5000
F = 15000 N
Answered by
3
force=mass ×acceleration
=3×25
=75N
a = 5000 m/s & F = 15000 N
u = 0 m/s
v = 25 m/s
t = 0.005 s
v = u + a t
25 = 0 + (a) 0.005
a = 5000 m/s
F = ma
F = 3 x 5000
F = 15000 N
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