Question

34.
The initial velocity of a body moving along a
straight line in 7 m/s. It has a uniform acceleration
of 4 m/s". The distance covered by the body in the
5th second of its motion is
A. 25 m
B. 35 m
C. 50 m
D. 85 m

Answer 1

Answer:

Correct option is (A) 25 m

Explanation:

Given,

u=7m/s

a=4m/s

2

n=5

The distance covered by the body in n

th

sec is given by

S

n

=u+

2

a

(2n−1)

S

5

=7+

2

4

(2×5−1)

S

5

=25m

The correct option is A.