Science, asked by indoraravi95, 8 months ago

plz give me answer plzzzzzzzz fast plz​

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Answers

Answered by purnima9092
1

Answer:

mujhe nahi pata

Explanation:

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Answered by Anonymous
2

Answer:

1) (1)When a body is changing its velocity at a constant rate, then the body is said to be moving with uniform acceleration.

(2)When a body is changing its velocity at different rates, then the body is said to be moving with non-uniform acceleration.

2)Initial speed u=80 km/h=80×

18

5

=22.22 m/s

Final speed v=60 km/h=60×

18

5

=16.67 m/s

Using v=u+at

Or 16.67=22.22+α×5

⟹ a=−1.1 m/s

2

3)Given: t=10 min=10×60=600s

Initial speed of train is given as: u=0 ms

−1

Final speed of train is given as: v=40 km h

−1

=

3600

40×1000

=11.1 ms

−1

Now acceleration is given by the relation:

a=

t

v−u

=

600

11.1−0

=0.0185 ms

−2

I hope it help you...

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