A child is sliding on a sled at 1.5 m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and sled is 35 kg, what average force do you need to apply to stop the sled? Use the concepts of impulse and momentum.

A force of 90.0 newtons is applied to a cart traveling at 15.0 meters per second. After the force has been applied for 2.00 seconds, it comes to rest. What is the magnitude of the impulse applied to the cart over these 2.00 seconds?

A 1390 - kg car moving at 6.00 m/s is initially traveling north along the positive direction of a y axis. After completing a 90° right-hand turn to the positive x direction in 5.00 s, the inattentive operator drives into a tree, which stops the car in 480 ms. In unit-vector notation, what is the impulse on the car during the turn? 2 + Submit Answer Tries 0/40 In unit-vector notation, what is the impulse on the car during the collision? 2 3 Submit Answer Tries 0/40 What is the Submit Answer What is the magnitude of the average force that acts on the car during the turn? Tries 0/40 magnitude of the average force that acts on the car during the collision? Submit Answer What is the Submit Answer Tries 0/40 Tries 0/40 direction of the average force during the turn? Post Discussion 4 Send Feedback

In tae-kwon-do, a hand is slammed down onto a target at a speed of 13.2 m/s and comes to a stop during the 5.16 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.654 kg.What is the magnitude of the impulse?8.63 N*s What is the magnitude of the average force on the hand from the target? (Answer 2nd question)

3. Initially, block A has a speed of 3 m/s as shown in the figure below. Use the principle of linear impulse and momentum to determine the speed of block B at t=6 s. The coefficient of kinetic friction between block A and the surface is Hk = 0.15 The pulleys are weightless and frictionless. 10 kg 30° V4.1 = 3 m/s B 20 kg

An air track glider is moving along at a steady speed of 3.60 m/s when a force of 1.20 N is applied in the direction opposite to the motion of the glider for a time of 2.40 s. The force then steadily decreases at a rate of 0.60 N/s for the next 3.00 seconds. a. Find the total impulse b. the final speed of the 250-g glider.

ent G An impulse of 12.2 kg*m/s is deli x 361242/take 10 p Question 1 A warehouse employee is pushing a 30.0 kg desk across a floor at a constant speed of 0.50 m/s. What is the magnitude of the momentum of the desk? O 0.017 kg*m/s O 15.0 kg*m/s O 60 kg*m/s O 30.5 kg*m/s Question 2 10 pts Norton Antivirus: 19.99/YE Your special price is valid to Google Chrome istudy-helper.co The momentum of a 12kg dog racing to greet its owner has a Norton What is the dog's speed? Install O a Cop

The bumper of a car has a force sensor mounted inside which records the force vs time graph during crash testing. A particular collision occurs between t = 0.075s and t = 2.32s and can be modelled by the following function: F(t) = 4t4 – 80t² + 140t – 10 A graph of the collision is also provided below: Impulse 60 50 40 30 20 10 1 time (s) Part A The impulse during the collision will be while the maximum force experience by the bumper will be 75 kg · m/s, 33N 54 kg · m/s, 54N O 75 kg · m/s, 54N 54 kg · m/s, 33N (N) aɔ10

A golf ball of mass 0.045 kg is hit off the tee at a speed of 35 m/s. The golf club was in contact with the ball for 3.50×10−3 s. Part A Find the impulse imparted to the golf ball. Express your answer to two significant figures and include the appropriate units. F¯Δt =________   Part B Find the average force exerted on the ball by the golf club. Express your answer to two significant figures and include the appropriate units. F=____________

An insurance company is testing air bag safety. Car A has front air bags and Car B does not. In both cases, the cars are driven into a brick wall with the same momentum. In Car A, the dummy survives, but in Car B, the dummy does not. In terms of impulse and force, please explain this result. The dummy in Car B experienced a greater impulse and a greater force than in Car A. O The dummy in Car B experienceda greater impulse but the same force as in Car A. The dummy in Car B experienced the same impulse but a greater force than in Car A. O The dummy in Car B experienced the same impulse and the same force as in Car A. O Not enough information to determine.