an object started from rest trevals 20m in first 2sec and 160m in next 4sec.what will the velocity after 7sec from the starts?
Answers
Answered by
1
s=ut+1/2*a*t²
20=1/2*a*4
20=2a
a=10m/s²
In 7 seconds
a=(v-u)/t
10=v-0/7
70m/s=v
Velocity after 7 seconds is 70 m/s
20=1/2*a*4
20=2a
a=10m/s²
In 7 seconds
a=(v-u)/t
10=v-0/7
70m/s=v
Velocity after 7 seconds is 70 m/s
Similar questions