Asoccer player kicks a ball with a mass of 0.42 kg. the ball travels for 1.6s until the goalie
stops it as it is traveling at a velocity of 28 m/s.
a. what was the average acceleration of the soccer ball?

b. use the value you determined for acceleration to determine the amount of force the kicker
supplied to the soccer ball.

c. describe how the force that the kicker’s foot exerted on the ball compares to the force that
the ball exerted on the kicker’s foot.

d. the soccer ball has a mass of 0.42 kg. what additional information must you have to
determine the soccer ball’s weight?

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g