Question

question 10
which factor can influence braking distance?
a length
b speed
c radius
d temperature

Explanation:

Braking distance is the distance a vehicle travels from the moment the brakes are applied until it comes to a complete stop. According to the kinematic equation \(v^{2}=u^{2}+2as\) (where \(v = 0\) for stopping, \(u\) is the initial speed, \(a\) is the deceleration, and \(s\) is the braking distance), \(s=\frac{u^{2}}{2|a|}\). So, the initial speed \(u\) (which is related to the speed of the vehicle) has a direct influence on the braking distance. Length, radius, and temperature (assuming normal operating temperature ranges for vehicle brakes) do not have a direct relationship with the braking - distance formula in the context of basic kinematics for a moving vehicle.

Answer:

B. speed