For a specific roller coaster, the cart and its riders are brought to rest using a series of electromagnets. One 80 kg rider used a force sensor to measure the average force experienced during the slowing of the cart. The rider experienced an average force of 2600 N over a duration of 1.6 s. What was the rider’s initial speed before coming to rest? *

A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.