Question

A wheel of a cart is making 4 revolution per second if the diameter be 84 cm find speed of wheel in centimetre per second

Answer 1

Diameter of the wheel is 84 cm

so circumference of the wheel

=π×diameter

=22/7×84cm=22×12cm=264cm

distance covered in one revolution=

circumference of the wheel.

In 1 sec there are 4 revolutions

so distance covered in 1sec=

4×264cm=1056cm

so speed of the wheel is 1056cm/sec

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Answer 2

Refer to the attachment

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