# Physics

A car travels over a hill at a constant speed as shown in the diagram below.

The car’s speed is 12.1 m/s, its mass is 1621 kg, the radius of the hill is 29 meters, and the force of friction is 201.6 N. The gravitational field of the earth is 10N/Kg.
Calculate the Force Perpendicular (Normal Force) on the car.

1. 👍
2. 👎
3. 👁
1. If it is at the top, then
F = m g - m v^2/R and the friction is not part of the normal force

1. 👍
2. 👎
2. g stands for the gravitational field?

1. 👍
2. 👎
3. The force up on the car from the road is the weight, m g - mass times centripetal acceleration
when v^2/R = g, the car leaves the road.

1. 👍
2. 👎
4. g actually has a name: Gravity Field Intensity, in units of Newton/kilogram. On the surface of Earth, it is 9.8 N/kg....and, if you do some unit manipulation, you can find that it is equal to 9.8 m/sec^2, which some call acceleration due to gravity. Note that F=ma, or a= F/m=N/kg

1. 👍
2. 👎
👤
bobpursley

## Similar Questions

1. ### physics

Cars A and B are racing each other along a straight path in following manner: Car A has head start and is a distance dA beyond starting line at t=0. The starting line is at x=o. Car A travels at constant speed vA. Car B starts at

2. ### Physics

Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 77 km/h, while car B travels at a constant speed of 89 km/h. 1. How long does it take car A to reach a gas

3. ### Help me with science please

Which statement includes a description of velocity?(1 point) A marble rolls 30 centimeters away from the table. A car travels east at 45 kilometers per hour. A bicycle moves 8 meters per second. A student walks 20 meters down the

4. ### physics, dynamics

Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 2 m/s2 until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when t = 0, car B located 2000 m down the road

1. ### physics

Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance Da beyond the starting line at t=0. The starting line is at x=0. Car A travels at a constant speed

2. ### Physics

Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 79 km/h, while car B travels at a constant speed of 89 km/h. How far is Car A from school 2.1 h later?

3. ### F/maths

X, Y and Z are three points on a straight road.A car passes X with a speed of 5m/s and travels from X to Y with a constant acceleration of 2m/s^2. The car then moves with a constant retardation of 3.5m/s^2 from Y to Z and comes to

4. ### physics

A car stops for a red ligth. The light turns green and the car moves for 3 seconds at a steadily increasing speed. During this time, it travels 20 meters. The car then travels at a constant speed for another 3 seconds for a

1. ### Physics

A road heading due east passes over a small hill. You drive a car of mass m at constant speed v over the top of the hill, where the shape of the roadway is well approximated as an arc of a circle with radius R. Sensors have been

2. ### physics

Cars A and B are racing each other along a straight path in following manner: Car A has head start and is a distance dA beyond starting line at t=0. The starting line is at x=o. Car A travels at constant speed vA. Car B starts at

3. ### physics

Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance DA beyond the starting line at t=0. The starting line is at x=0. Car A travels at a constant speed

4. ### physics

A 7150-kg railroad car travels alone on a level frictionless track with a constant speed of 15.0 m/s. A 3350-kg load, initially at rest, is dropped onto the car. What will be the car's new speed?