# physics

a car is driven off the edge of that is 54.0 m high. the point of impact is 130m from the base of the cliff. how fast was the car traveling in (miles/hr) when it went over the cliff?

1. 👍 0
2. 👎 0
3. 👁 116
1. How long to fall ?

54 = (1/2) g t^2
108 = 9.81 t^2
t = 3.32 seconds in the air, screaming and wishing for parachute

In 3.32 seconds we went 130 meters at constant horizontal velocity u

130 = t (3.32)
t = 39.2 m/s

so now convert that to miles/hr. (Google). 87.7 miles/hr it says

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

1. ### physics

Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force

asked by Meg on February 15, 2012
2. ### physics

In a stunt for a movie, a remote controlled car is driven horizontally of the edge of a cliff at a speed of 35m/s. The car hits the ground 85m from the base of the cliff. How high is the cliff?

asked by Aaron on August 10, 2012
3. ### Physics for Life science

A car is driven at 80km/h on a horizontal road. If the car is now driven up a 10m high rise, what speed would it have at the top of the rise? (Assume that the wheels of the car roll at all times so that it doesn't experience

asked by TangenT on June 1, 2010
4. ### physics for life sciences

A car is driven at 80km/h on a horizontal road. If the car is now driven up 10m high rise, what speed would it have at the top of the rise? ( Assume thet the wheels of the car roll at all times so thatit dosen't experience sliding

asked by Lillian on June 2, 2010
5. ### Physics.

A toy car runs off the edge of a horizontal table that is 1.21 m high. The car lands 1.39 m away from the edge of the table How fast was the car moving across the table just before it fell? ____m/s MY WORK: h=1/2gt^2

asked by Rose Nicol on October 23, 2014
1. ### Physics

A roller coaster car of mass 1000kg is riding along a track from point A to point C. (point A is 75m high, B is 50m high and C is 100m high, so that there are a total of three hills.) the final velocity at point C is 10m/s a)

asked by Tammy on November 14, 2007
2. ### Physics

A roller coaster car of mass 1000kg is riding along a track from point A to point C. (point A is 75m high, B is 50m high and C is 100m high, so that there are a total of three hills.) the final velocity at point C is 10m/s a)

asked by Tammy on November 14, 2007
3. ### Physics

A car drive straight of the edge of a cliff that is 54m high. The police note that the point of impact is 130m from the base of the cliff. How fast was the car travelling when it went off the cliff.

asked by Paulyne on February 27, 2017
4. ### Physics

A car drive straight of the edge of a cliff that is 54m high. The police note that the point of impact is 130m from the base of the cliff. How fast was the car travelling when it went off the cliff.

asked by Anonymous on February 27, 2017
5. ### Physics

A car drives straight off the edge of a cliff that is 68 m high. The police at the scene of the accident note that the point of impact is 148 m from the base of the cliff. How fast was the car traveling when it went over the

asked by James on May 21, 2012

More Similar Questions