Question

A particle is dropped from a height of 3.46958 m. In
what time the particle would travel the first metre
distance ? (Given : g = 10 m s-2)
(a) /125
(6) 13 S
(c) 1/2 s
(d) 15 s.​

Answer 1

Answer:

a option is correct

Explanation:

Let the total time of journey be n seconds.

Distance travelled in nth sec;

s

n

=u+

2

a

(2n−1)⇒45=0+

2

10

(2n−1)

n=5 sec

Height of tower; h=

2

1

gt

2

=

2

1

×10×5

2

=125m