# physics

A sports car weighing 600 kg travels North at 35 m/s. Running a stop sign, the car crashes into a 2000 kg truck traveling East at 20 m/s. The vehicles become locked together and travel 18 meters before stopping. Find the direction and the deceleration of the wreckage from the point of impact. Can you show an example of how to find this?

1. 👍
2. 👎
3. 👁
1. momentum:
600*35N+2000*20E=(2600)@theta
momentum is conserved in all directions:
East Theta measured from N
2000*20=2600*VsinTheta
North
600*35=2600 V cosTheta

divide N equation into East equation
40000/600*35=TanTheta
solve for Theta.
Next, ust that angle to solve for V in either equation.
then
Vf^2=0=V^2+2a*18 solve for a.
and a is in the opposite direction from V

1. 👍
2. 👎
👤
bobpursley

## Similar Questions

1. ### physics

A sports car moving at constant speed travels 120 m in 5.1 s. If it then brakes and comes to a stop in 4.0 s, what is its acceleration? Express the answer in terms of g's, where g = 9.80 m/s2. (Take the positive direction to be

2. ### physics

A car and driver weighing 7750 N passes a sign stating “Bridge Out 28.5 m Ahead.” She slams on the brakes, and the car decelerates at a constant rate of 10.6 m/s2 . The acceleration of gravity is 9.8 m/s2 . What is the

3. ### physics

a)Two cars are traveling along a straight line in the same direction, the lead car at 24.5m/s and the other car at 29.6m/s. At the moment the cars are 41.6m apart, the lead driver applies the brakes, causing her car to have an

4. ### I need help again

A car enters a turnpike 22 miles north of a town. The car travels north at an average speed of 64 miles per hour. How far is the car from the town after 4 hours? How do you solve the linear function then solve the problem? If you

1. ### Science halp

6.Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop? * A. The car with the smaller mass will require less force to stop

2. ### physics

a sports car traveling at 27.8 m/s slows at a constant rate to a stop in 8.00 s. What is the displacement of the sports car in this time interval

3. ### physics

michael is driving his sports car at 30m/s when he sees a dog on the road he slams on the breaks and comes to a stop in 3.0 second what is the acceleration of michael car?

4. ### physics

Two cars collide head on. Initially, car A (m= 1700.0 kg) is traveling at 10.00 m/s north and car B is traveling at 25.00 m/s south. After the collision, car A reverses its direction and travels at 5.00 m/s while car B continues

1. ### physics

The figure shows the velocity of a solar-powered car as a function of time. The driver accelerates from a stop sign, cruises for 20 at a constant speed of 60 , and then brakes to come to a stop 40 after leaving the stop sign.

2. ### Zeeland WEST

In a car accidnet involving a sports car, skid marks as long as 290 m were left by the car as it decelearted to a complete stop. The police report cited the speed of the car before breaking as beeing in excess of 100mph 161 km/m.

3. ### Calculus

A road running north to south crosses a road going east to west at the point P. Car A is driving north along the first road, and an airplane is flying east above the second road. At a particular time the car is 15 kilometers to

4. ### physics

A sports car moving at constant velocity travels 110m in 5.1s .If it then brakes and comes to a stop in 4.3s , what is the magnitude of its acceleration (assumed constant) in m/s2?