Engineering Physics I Practice Test 1

1. A bullet fired into a fixed target loss half of its velocity after penetrating 3cm. How much further will it penetrate before coming to rest assuming that it faces constant resistance in motion?

2. A person is standing in a bus. When the bus starts moving forward suddenly ___________

3. How is friction due to air reduced?

4. It is easier to catch a tennis ball than a cricket ball even when both are moving with the same velocity.

5. For a particle in one dimensional motion, which of the following is true?

6. A passenger arriving in a new town wishes to go from the station to a hotel located 10km away on a straight road from the station. A dishonest cabman takes him along a circuitous path 23km long and reaches the hotel in 28 minutes, what is the average speed of the taxi?

7. A body is projected horizontally from the top of a cliff with a velocity of 9.8m/s. What time elapses before horizontal and vertical velocities become equal? Take g = 9.8m/s²

8. Swimming is an example of which of the following?

9. A weight W rests on a rough horizontal plane. If the angle of friction is θ, the least force that will move the body along the plane will be ___________

10. The driver of a car suddenly sees a broad wall in front of him. What he should do?