Question

If the speed of a truck is reduced from 26.7m/s to 6.7m/s within a distance of 800m. Find the time the break were applied and how much longer it would take before coming to a rest

Answer 1

Answer:

speed =26.7-6.7

=20.0m/sec

therefore you can also write it as =20m/sec

distance=800m

time=?

therefore,

speed=distance/time

20=800/time

time=800/20

time=40sec