a car begins travelling at 20 m/sec, and speeds up to 25 m/sec. The time of the speed change is 10 seconds. What is the acceleration?
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the acceleration is 1/2m/s.s.
Explanation:
u=20m/s
v=25m/s
t=10s
a=v-u/t
=25-20/10
=5/10
=1/2m/s.s.
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