a moving train is brought to rest within 20 seconds by applying brake. Findnd the initial velocity if the retardation due to break is 2m/s
Answers
Answered by
0
V=0
A=2
T=20
V=u+at
0=u+(-20*2)
0=u-40
U=40 m/sec
A=2
T=20
V=u+at
0=u+(-20*2)
0=u-40
U=40 m/sec
Answered by
2
acceleration=2m/s2
time=20 s
final velocity is 0
v=u+at
0=u+2×(-20)
40=u
initial velocity is 40
time=20 s
final velocity is 0
v=u+at
0=u+2×(-20)
40=u
initial velocity is 40
Similar questions