A 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back towards the pitcher at 59.0 m/s. If the contact time between bat and ball is 0.001 s, calculate the average force between the ball and
bat contact. (NO Scientific Notation!)

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Work = force × a. work b. energy c. distance d. momentum