bike running at 90 km per hour is slowed down to 54 km per hour by the application of brakes over a distance of 40 m calculate the total time in which the bike to comes to rest and the total distance travelled by bike
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56
v²-u²=2as
54²-90²=2a×40/1000
-36×144×1000/80=a
-324000/5=a
a=-64800km/hr²
v=u+at
0=90+(-64800t)
t=-90/-64800hr
s=9/6480×90=81/648km
54²-90²=2a×40/1000
-36×144×1000/80=a
-324000/5=a
a=-64800km/hr²
v=u+at
0=90+(-64800t)
t=-90/-64800hr
s=9/6480×90=81/648km
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