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DPP - 01102021021BHPAT : Daily Practice Problems - PHYSICS - 01/10/2021 : Mandakini Study Institute - Patna
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DPP - 01102021021BHPAT : Daily Practice Problems - PHYSICS - 01/10/2021

      DPP - 01102021021BHPAT : Daily Practice Problems - PHYSICS - 01/10/2021


Q1. A car travelling initially at 7 ms–1 accelerates at the rate of 8.0 ms–2 for an interval of 2.0 s. What is its velocity at the end of the 2 s?

Q2. A car travelling in a straight line has a velocity of 5.0 ms–1 at some instant. After 4.0 s, its velocity is 8.0 ms–1. What is its average acceleration in this time interval?

Q3. Does the direction of velocity decide the direction of acceleration?

Q4. Establish the relation between acceleration and distance travelled by the body

Q5. Explain whether or not the following particles have acceleration:
(i) a particle moving in a straight line with constant speed, and
(ii) a particle moving on a curve with constant speed.

Q6. Why does a sprinter keep running for sometime even after crossing the finish line?

Q7. Why is it advised to tie the luggage with a rope on the roof of busses?

Q8. Why do the dust particles from the hanging blanket fall off when it is beaten with a stick?

Q9. State Newton’s first law of motion. Why do the passengers standing in a stationary bus fall in the backward direction when the bus begins to move suddenly.

Q10. Define momentum. How the rate of change of momentum is related to force?

Q11. If a body of mass 10 kg moves with a velocity of 7 ms–1, then what is the momentum of the body?

Q12. If a force of 50 N acts on a body of mass 10 kg then what is the acceleration produced in the body?