Q. A typical color television draws about 3 Amps when connected to a 84 Volts source. What is the effective resistance of the Television set?
Q. A barefoot field-goal kicker imparts a speed of 18 m/s to a football initially at rest.
If the football has a mass of 0.47 kg and the time of contact with the ball is 0.021 s, what is the force exerted by the ball on the kicker's foot?