momentum = mass * velocity
4. A person is driving a car along a level road with velocity V, and suddenly sees a truck stopped in the road ahead, a distance D away. a) Draw a complete diagram with all information necessary to solve the parts below. Remember, any quantity you use must appear in the diagram. b) How hard must the driver brake, i.e. what is the required acceleration magnitude, to avoid crashing into the truck? Derive an expression in terms of system parameters....
15. A car of mass m moving at a speed v, collides and couples with the back of a truck of mass 2m moving initially in the same direction as the car at a lower speed v. (a) What is the speed v, of the two vehicles immediately after the collision? (b) What is the change in kinetic energy of the car-truck system in the collision?
A small car of mass m and a large car of mass 4m drive along a highway at constant speed. They approach a curve of radius R. Both cars maintain the same acceleration a as they travel around the curve. How does the speed of the small car vS compare to the speed of the large car vL as they round the curve? Now assume that two identical cars of mass m drive along a highway. One car approaches a...
Problem 2 A car and a truck collide on a very slippery highway. The car, with a mass of 1600 kg, was initially moving at 50 mph. The truck, with a mass of 3000 kg, hit the car from behind at 65 mph. Assume the two vehicles form an (a) If, immediately after the collision, the vehicles separate and the truck's velocity is found to be 55 mph in (b) If instead the vehicles end up stuck together, what will...
Consider someone driving down the highway at 70 miles per hour (31.3 m/s). The total mass of the driver and their car (as well as everything else in the car) is 1600kg. How much work must friction do to make the car stop?
Consider someone driving down the highway at 70 miles per hour (31.3 m/s). The total mass of the driver and their car (as well as everything else in the car) is 1300kg. A) How much work must friction do to make the car stop? I got −6.37×10^5 J B) A tree suddenly falls on the highway 60m in front of the car, and the driver just barely manages to stop before hitting the tree. What is the magnitude of the...
A car with mass of m is moving from left to right side of the street with the velocity V and accidently hit a truck with the mass of 3m which was at rest. What is the total momentum of the car and truck after collision? Ozero O O 2my O O
A 4350 kg truck, driving 7.39 m/s, runs into the back of a stationary car. After the collision, the truck moves 4.55 m/s and the car moves 11.5 m/s, both in the same direction. What is the mass of the car?
x x + vt + ar A car is driving down a level highway at Vo = 60 mph (26.8 m/s) when suddenly it runs off an 8.0m high cliff a) Draw a good well-labeled diagram of this in the space below. Remember what well- labeled means. Show the velocity vector vo at the top of the cliff. Add a coordinate V, + x-x, (v + v)t dl) Find the rime of flight tyto the point at which the car...
A small car with mass 940. kg traveling with a velocity of 34.0 m/s collides head-on with a large car with mass 2,980. kg traveling in the opposite direction at a velocity of-29.3 m/s. The two cars stick together. The duration of the collision is 94.7 ms. What acceleration (in units of g) do the occupants of the small car experience? What acceleration (in units of g) do the occupants of the large car experience? (Use the direction convention that...