Question

(A)identify the kind of motion in the following cases
(1)a car moving with a constant speed turning around a curve.
(2)an electron orbitting around neucleous.
(B)an artificial stellite is moving in a circular orbit of radius 36,000km.calculate its speed if it takes 24hrs to revolve around the earth

Answer 1

A.(1) Curvilinear motion.
(2) Circular motion.

B. speed = 36000/24
= 1500 km/h

Answer 2

A.1.Rotational motion
2.Rotational motion
B.Speed=
$d \div t$
$= 36000 \div 24$
=1500km/h