Your car gets a flat! you go from 90 kilometers per hour to a stop
in 6 seconds. what is your rate of deceleration? (it's negative)

Explanation:

The acceleration of an object can be found using the equation

where

v is the final velocity of the object

u is the initial velocity of the object

t is the time taken for the velocity to change from u to v

For the car in this problem:

is the initial velocity

v = 0 is the final velocity (the car comes to a stop)

t = 6 is the time interval it takes  for the car to stop

Substituting, we find the deceleration of the car:

where the negative sign indicates that the car is slowing down.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

choosing tennis and golf balls is your inde choice.

their mass and volume are dep