Physics, asked by sadhnamotwani66, 8 months ago

1. A car is travelling at 20 km/h, it speeds upto 60 km/h in 6 seconds. What is its acceleration?

2. A car accelerates from 6 ms–1 to 16 ms–1 in 10 sec.
Calculate
(a) the acceleration and
(b) the distance covered by the car in that time.

3. A toy car accelerates from 3m/s to 5m/s in 5 s. What is its acceleration?

4. Which speed is greater: 30 m/s or 30 km/h?

5. The driver of train A travelling at a speed of 54 kmh-1 applies brakes and retards the train uniformly. The train stops in 5 seconds.
Calculate the acceleration.

6. A body starts to slide over a horizontal surface with an initial velocity of 0.5 m/s. Due to friction, its velocity decreases at the rate 0.05 m/s2. How much time will it take for the body to stop?

7. A ball hits the wall horizontally at 6m/s. It rebounds horizontally at 4.4m/s. The ball was in contact with wall for 0.040 seconds.
What is the acceleration of the ball ?

Answers

Answered by TheRiskyGuy

Answer:

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Answered by syedrutbafarooq00003

Answer:

Explanation:

1.v²-u²=at

(20×5/18)²-(60×5/18)²=6a

(50/9)²-(50/3)²/6=a

(2500/81-2500/9)6=a

solve and get the answer

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