Vikas TU
Last Activity: 7 Years ago
Dear Student,
Time it takes to reach 20m/s.
v=u+at
=>t=20s
S=at
2/2
=>S=400m
Time it takes to reach 0 again because it will start to decelerate
v=u+at
=>20=2t
=>t=10
Distance it will travel in this 10s=ut+at
2/2 = 20x10-2x100/2
=100m
Total distance=500m time taken for it 30s
for distance 1000m time will be 60s since the same process will repeat again.
Cheers!!
Regards,
Vikas (B. Tech. 4th year
Thapar University)