Answer all questions and show all work and explain everything.

Stunt driver 3 Delores \"Smitty" Smith landed a new gig as a stunt driver on a giant Hot Wheels track 'Jumping the Shark'. A crane lifts her rebuilt 3500 N Delorean at constant velocity to the top of the track 80 m above the ground. There is a short, curved ramp at the end of the track, the car's new velocity is now angled 28 degrees above horizontal. Assume no frictional forces. 1. How much work was done lifting the car to the top of the track? 2. What is the gravitational potential energy of the car at the top of the track? 3. The crane expends 10 kiloWatts l10ij to lift the car to the top of the track. How much time is needed for the lift? 4. Starting from rest, the car coasts down to the bottom of the track. How fast is the car going at the bottom of the track (before it hits the short, curved ramp)? How long is the car in the air? What is the maximum width of a shark tank that can be safely used? What maximum height did the car reach? What is the car's potential energy at the highest point in the jump? What' IS the car's kinetic energy at the highest point in the jump? 10. What Is the car's kinetic energy afterjumping the shark tank? 11. What Is the car's mechanical energy @ h=12m on the way up to h-max? 12. Why is it important to specify 'no frictional forces'? SOFT-'9'!\" Wnel = AKE = KEr - KEI; Wm =-iPE = -(PEr PEI} = PEi - PEf Wnet= Fne1*d"' C059 MEf: ME.= KEA + PEA = KEB + PEI; Power = W/t {Watts} Stunt driver 3 Delores \"Smitty" Smith landed a new gig as a stunt driver on a giant Hot Wheels track 'Jumping the Shark'. A crane lifts her rebuilt 3500 N Delorean at constant velocity to the top of the track 80 m above the ground. There is a short, curved ramp at the end of the track, the car's new velocity is now angled 28 degrees above horizontal. Assume no frictional forces. 1. How much work was done lifting the car to the top of the track? 2. What is the gravitational potential energy of the car at the top of the track? 3. The crane expands 10 kiloWatts (10kw) to lift the car to the top of the track. How much time is needed for the lift? 4. Starting from rest, the car coasts down to the bottom of the track. How fast is the car going at the bottom ofthe track (before it hits the short, curved ramp)? How long is the car in the air? What is the maximum width of a shark tank that can be safely used? What maximum height did the car reach? What is the car's potential energy at the highest point in the jump? What Is the car 5 kinetic energy at the highest point in the jump? 10. What Is the car's kinetic energy after' jumping the shark tank? 11. What' Is the car's mechanical energy @ h=12m on the way up to h-max? 12. Why is it important to specify 'no frictional forces'? P9924991 Wne' = AKE = KEr - KEI; Wm =-APE = -(PE+- PE.) 2 PE.- - PEf Wm = Fnet*d*cose ME: ME. = IreA + per KEB + PEI; Power = Wft {Watts}