Question

Answer the following questions:
1. Distinguish between speed and velocity.
2. A bus decreases its speed from 80 kmph to 60 kmph in 5 seconds. Find the
acceleration of the bus.
3. A train starting from a railway station and moving with uniform acceleration
attains a speed of 40 kmph in 10 minutes. Find its acceleration.
4. A motorboat starting from rest on a lake accelerates in a straight line at a
constant rate of 3 m/s for 8 seconds. How far does the boat travel during this
time?
5. Derive all three equations of motion.
6. State all three of Newton’s Laws of motion.
7. A vehicle has a mass of 1500 kg. What must be the force between the vehicle and
the road if the vehicle is to be stopped with a negative acceleration of 1.7 m/s 2?
8. An object of 2 kg mass is sliding with a constant velocity of 4 m/s on a
frictionless horizontal table. The force required to keep the object moving with
the same velocity is _____N.
9. Rocket works on the principle of conservation of _____________.
10. Draw a V-t graph to represent the body is moving with uniform acceleration.

Answer 1

Step-by-step explanation:

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