Question

I. Multiple Choice Questions
1. Which one of the following is not an example of non-contact force?
a. ball thrown up returns back to earth
b.) falling of raindrops on earth
c. iron pins attracted by a bar magnet.
d. The force exerted by a stretched spring.
2. Lifting of a bucket of water with the help of muscular force is an exa
a. Contact
non - contact
3. Find out the suitable pair of non-contacting forces
a. frictional, normal
b. gravitational, electrostatic
c. magnetic, frictional d. nuclear, normal​

Answer 1

Answer:

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