Advertisement Remove all ads

Advertisement Remove all ads

MCQ

A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s^{2}. After 2 seconds, its speed will be:

#### Options

8 m/s

12 m/s

16 m/s

28 m/s

Advertisement Remove all ads

#### Solution

28 m/s

Acceleration of the moving object is 4 m/s^{2}

Initial velocity is 20 m/s.

Time taken is 2 sec.

By applying 1^{st} equation of motion we get,

v = u + at

= 20 + 2(4)

= 28 m/s

So, the answer is

(d) 28 m/s

Concept: Measuring the Rate of Motion - Speed with Direction

Is there an error in this question or solution?

Advertisement Remove all ads

#### APPEARS IN

Advertisement Remove all ads