Question

44. A body started accelerating from rest. If it travels
20 m in first 5 seconds then distance travelled in
next 5 seconds is
(1) 20 m
(3) 100 m
(4) 80 m
(2) 60m​

Answer 1

Answer:

Explanation:

Ans =60m

S=20

T=5

U=0

S=ut+1/2at^2=which gives acc=8/5

Putting it in 1st eq=v=u+at

From this we get v=8

Putting 8 as the initial speed for the next 5 sec in 2nd eq=s=it+1/2at^2

We get s=60