Question

(a) Identify the kind of motion in the following cases :
(i) A car moving with constant speed turning around a curve.
(ii) An electron orbiting around nucleus.

(b) An artificial satellite is moving in a circular orbit of radius 36,000 km. Calculate its speed if it takes 24 hours to revolve around the earth.

Answer 1

Answer:

I) circular motion

ii) rotational motion

Answer 2

Answer:

answer a

1. circular motion

2.uniformly accelerated motion

answer2

speed=distance/time

here, both terms are co -relating

so, no need to convert in IS unit

now,

speed= 36,000/24

=1500km / hr ans.

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