(c) The thinking distance is the distance travelled during the driver's reaction time. A car was travelling at 13 m/s
The driver's reaction time was 0.6 s
Calculate the thinking distance
Use the equation:
distance travelled = speed x time
Thinking distance =

if you answer my question i will answer yours

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.