At the bottom of the hill, group A measures the speed of a 0.17-kg car at 3.85 m/s while group B measures the speed of the same car at 4.45 m/s. The position when the car is started to move from the top of the hill is 3 m. a). Calculate the potential energy of the car before its speed is measured. b.) Calculate the kinetic energy of the car for group A. c.) Calculate the kinetic energy of the car for group B. [2] d. How much is the energy lost due to friction for the car that is measured by group A and B?

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

answera compound;

false

explanation: