5. A 1000-kg car is at the top of a hill as shown, where its elevation...
A wagon with its passenger sits at the top of a hill. The wagon is given a slight push and rolls 200 m down a 16° incline to the bottom of the hill. What is the wagon's speed (in m/s) when it reaches the end of the incline? Assume that the retarding force of friction is negligible. _? m/s
An 1100 kg car is shifted into neutral and coasts down a 10 meter hill and then back up a 15 meter hill. If you assume that frictional losses are negligible and the car starts out at 60 mph, what will its speed be when it reaches the top of the second hill? Use g 9.8 m/s2, 1 mile 1600 meters, and round answer to 2 significant figures. - Gas station 15 m 10 m
4. A car is parked on a hill as shown in the figure. If the handbrake fails, and assuming no friction, what speed is the car travelling at when it reaches the bottom of the slope? Work this out using (a) Newton's 2nd law and the relevant kinematic equations and (b) using the work- kinetic energy theorem
A 200-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then descends the hill, which is at an angle of 25° and is 58.0 m long. What will its kinetic energy be when it reaches the bottom? Assume µk = 0.10. A boy pulls a 20.0-kg box with a 130-N force at 33° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.29...
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 6.2 m/s. Ignore frictional losses. (a) What is the height of the hill? (b) Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can when it reaches the bottom?
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 6.2 m/s. Ignore frictional losses. (a) What is the height of the hill? (b) Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can when it reaches the bottom?
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 6.0 m/s. Ignore frictional losses. (a) What is the height of the hill? (b) Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can when it reaches the bottom?
A car on a roller coaster starts at zero speed at an elevation above the ground of 20.8 m. It coasts down a slope, and then climbs a hill. The top of the hill is at an elevation of 14.77 m. What is the speed, in m/s, of the car at the top of the hill? Neglect any frictional effects; g=9.80 m/s2. A projectile is shot from the surface of Earth by means of a very powerful cannon. If the...
A 200-kg roller coaster reaches the top of the steepest hill with a speed of 6.20 km/h. It then descends the hill, which is at an angle of 20° and is 49.0 m long. What will its kinetic energy be when it reaches the bottom? Assume µk = 0.14.
3) 3) A 20-kg object is resting at the top of a table 1.6 m above ground level. The object is then picked up and moved to a height of 8.7 m above ground level. What is the change in the gravitational potential energy of this object? 4) 4) A car on a roller coaster starts at zero speed at an elevation above the ground of 26 m. It coasts down a slope, and then climbs a hill. The top...