Physics WAEC

A boy walks away from a plane mirror at a speed of 3 ms-1 in a direction normal to the surface of the mirror. At what speed is his image approaching him?

A. 89.0ms-1
B. 6.0ms-1
C. 4.5ms-1
D. 1.5ms-1
E. 0.0ms-1

Correct Answer:

Option B – 6.0ms-1

Explanation

Velocity of image w.r.t boy = velocity of object – velocity of image

velocity w.r.t to boy = v – (-v)

=3.0 – (-3.0)

The image velocity is 6 m/s towards the boy.

Sunday

Share
Published by
Sunday
Tags: physics

Recent Posts

OOU JUPEB Admission For Agricultural Extension

Do you want to study Agricultural Extension in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Agricultural Economics

Do you want to study Agricultural Economics in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Cooperative and Business Management

Do you want to study Cooperative and Business Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Home and Hotel Management

Do you want to study Home and Hotel Management in OOU? Before you apply for…

11 months ago

OOU JUPEB Admission For Animal Production

Do you want to study Animal Production in OOU? Before you apply for the OOU…

11 months ago

OOU JUPEB Admission For Crop Production

Do you want to study Crop Production in OOU? Before you apply for the OOU…

11 months ago