Adaredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp, measured from the horizontal, at a speed of 40.0 m/s (144 km/h). the top of the ramp is at the same height as the roofs of the buses and each bus is 20.0 m long.

The number of buses are 7.

Explanation:

Given that,

Angle =32°

Speed = 40.0 m/s

Length of bus = 20.0

We need to calculate the range of bus

Using formula of range

Where, g = acceleration due to gravity

v = initial velocity

Put the value into the formula

We need to calculate the number of buses

Using formula of number of buses

Where, R = range

L = length of bus

Hence, The number of buses are 7.

this would be about 43%