Question

A motorcycle moving at 50 km/h skids 10 m with locked brakes. How far will it skid with locked brakes when traveling at 150 km/h

Answer 1

Answer:

It will cover a distance of 90.155 m.

Explanation:

For the first case, using the kinematic equation 3,

v^2-u^2=2as

Here v=0, u=50 km/h which is 13.88 m/s and x=10 m. so

0-(13.88)^2=2*a*10

a=9.63 m/s^2

For the second case, u=150 km/h which is 41.67 m/s.

If the acceleration is same for this case, then using the same kinematic equation.

0-(41.67)^2=2*9.63*s

s=90.155 m

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