Starting from the rest, Tom runs to attain a speed of 10 M per second in 40 seconds. then he slows down to 5 M per second in the next 20 seconds. calculate the acceleration of Tom in both cases.
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1 case
U=0
V=10
T=40
a=v-u/t
A=10-0/40
=0.25
2case
U=0.25
V=5
T=20
A=v-u/t
A=5-0.25/20
=4.75/20
=0.2375
U=0
V=10
T=40
a=v-u/t
A=10-0/40
=0.25
2case
U=0.25
V=5
T=20
A=v-u/t
A=5-0.25/20
=4.75/20
=0.2375
akashkrishnan:
R u sure
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