How much work must be done to stop a 1200-kg car traveling at 90 km/h ?
Express your answer to two significant figures and include the appropriate units.
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How much work must be done to stop a 1200-kg car traveling at 90 km/h ?...
How much work must be done to stop a 1150-kg car traveling at 90 km/h ? Express your answer to two significant figures and include the appropriate units.
Part A How much work must be done to stop a 1200-kg car traveling at 110 km/h?. Express your answer to two significant figures and include the appropriate units. ЦА ? W = 560.35 KJ Submit Previous Answers Request Answer
How much work must be done to stop a 1200-kg car traveling at 145 km/h ?
How much work must be done to stop a 1500 kg car traveling at 80 km/h ? Express your answer using two significant figures. h ΚΑΙ ΑΣφ ? W = Submit Request Answer Provide Feedback <Assignment 6 Problem 7.38 Part A If it requires 55 J of work to stretch a particular spring by 1.8 cm from its equilibrium length, how much more work will be required to stretch it an additional 45 cm? Express your answer using two significant...
If a car generates 16 hp when traveling at a steady 100 km/h , what must be the average force exerted on the car due to friction and air resistance? Express your answer to two significant figures and include the appropriate units.
A car moving at 90 km/h passes a 1.21 km -long train traveling in the same direction on a track that is parallel to the road. Part A If the speed of the train is 71 km/h , how long does it take the car to pass the train? Express your answer using two significant figures. Part B How far will the car have traveled in this time? Express your answer using two significant figures. Part C If the car...
2. Superman must stop a 120-km/h train in 100 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. a. Determine the force that must be exerted on the train.Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the...
Two railroad cars, each of mass 58000 kg kg and traveling 85 km/h km/h in opposite directions, collide head-on and come to rest. Two railroad cars, each of mass 58000 kg and traveling 85 km/h in opposite directions, collide head-on and come to rest. Part A How much thermal energy is produced in this collision? Express your answer to two significant figures and include the appropriate units. HÅR O ? E = 2.19.10 Submit Previous Answers Request Answer * Incorrect;...
Please help me with the following questions: 1) Superman must stop a 115-km/h train in 150 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. Part A: Determine the force that must be exerted on the train. Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value...
What average force is required to stop a 1700 kg car in 9.0 s if the car is traveling at 85 km/h ? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the direction opposite to the initial velocity.