A2100 kg car starts from rest and accelerates at a rate of 2.6 m/s^2 for 4.0 seconds. assume that the force acting to accelerate the car is acting in the same direction as its motion. how much work has the car done?

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.