Speedy sue, driving at 34.0 m/s, enters a one-lane tunnel. she then observes a slow-moving van 160 m ahead traveling at 5.40 m/s. sue applies her brakes but can accelerate only at −1.90 m/s2 because the road is wet. will there be a collision? yes no

How does mass affect the speed of an object

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.