Q4. (a) A ball is thrown with initial velocity 40ms , find the time in which its displacement is 60m.
Take g = 10ms-2
(4)
LT
Answers
Answered by
0
Answer:
don't know pa
Explanation:
if u mark me brainist then u will get 5 points back
Answered by
0
Answer:
t=6
Explanation:
given
u=40ms
g=a=10m/s
s=60m
now, s=u t + 1 /2 a t^2
60=40t + 5t^2
5t^2+40t-60=0
t^2+8t-12=0
t^2+6t+2t-12=0
(t-2).(t+6)=0
t=6 or t= -2 time cant be negative so t=6 sec
Similar questions