a vehicle is accelerating on a straight road its velocity at any instant is 30 km/h, at 2 second it is 33.6 k/h and after further 2 sec it is 37.2 km/hr find the acceleration of the vehicle in meter per second square. Is the acceleration uniform.
shreyavaish:
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Answers
Answered by
37
At t=0
v=30*(5/18)m/s
v=8.33 m/s
t=2
v1=33.6*(5/18) m/s
v1=9.33 m/s
t=4
v2=37.2*(5/18)
v2=10.33 m/s
Since the velocity is increasing 1m/s every 2 sec therefore it is a uniform acceleration of 0.5 m/s^2
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Answered by
1
Answer:
Answer
Given velocity v
1
=30km/h=8.33m/s
velocity v
2
=33.6km/h=9.33m/s
velocity v
3
=37.2km/h=10.33m/s
Time interval between v
1
and v
2
= 2s and v
2
and v
3
=2 s
Now acceleration a
12
=
2
9.33−8.33
=0.5m/s
2
similarly acceleration a
123
=
2
10.33−9.33
=0.5m/s
2
Now the net acceleration a
12
=
4
10.33−8.33
=0.5m/s
2
Yes the acceleration is uniform.
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