Question

1. A car covers 20 km in every 2 hours. Calculate the speed of the car
2. By giving two examples, explain that a body can undergo multiple motion
3. The mass of an object is 10 kg on earth. What is its weight?
4. Describe various types of motion with the help of examples.​

Answer 1

1) speed = distance/time

speed= 20km/2hr = 10km/hr

answer= 10km/hr

2)

yes the body can have multiple motions at the same time for example if you roll down a ball through inclined then the ball will do the rotational motion as well as linear motion.

3)

weight is equal to mass*gravity

where mass=10kg and gravity = 10m/s

thus, weight = 100kg m/s = 100N

4)

• Linear Motion: A few examples of linear motion are the motion of the train, football, the motion of a car on the road, etc.
• Rotatory motion :While driving a car, the motion of wheels and the steering wheel about its own axis is an example of rotatory motion
• oscillatory motion: child on swinging on a swing

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Answer 2

Answer:

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