A F biceps OCM M kg r2 r3 0 mg F shot r1 = 0.023 m r2 0.17 m r3 = 0.4 m A person is holding a shot put (mass = 4.6 kg) in their hand. The combined mass of their forearm and hand is 5.1 kg. The person's forearm is in-line with the X-axis for the given reference frame, which is 0 = 28.7° below the horizontal. Assume the system is in static equilibrium. Weight and force should be reported in Newtons. Torque should be reported in N.M. What is the moment (about point A) due to the X component of the shot put's weight?
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- 5. The system starts at rest. mı = 2 kg m2 = 6 kg the angle is 20 degrees and µk=0.15. What is the velocity of the system after m2 moves a distance of 10 meters? uN m¡gAs a science fair project, you want to launch an 700 g model rocket straight up and hit a horizontally moving target as it passes 26.0 m above the launch point. The rocket engine provides a constant thrust of 17.6 N. The target is approaching at a speed of 17.0 m/s. # 3 E D 80 F3 C 4 R F 888 V % 5 F5 T G ^ 6 B ▼ Part A At what horizontal distance between the target and the rocket should you launch? Express your answer with the appropriate units. FO Provide Feedback Y Value Submit MacBook Air H HA & 7 N F7 Request Answer U ** → 8 Units DII FB 1 M wwww. ? ( 9 K DD O :) O F10 P F11 1A 137 kg boat is trying to go, from the origin (as shown in the figure), straight across the river at a speed 0.7198 m/s in the y-direction. The current in the river, however, flows to the right and apply a net force of 100 N (x-direction). a) What is the position vector of the boat after 2 seconds. b) What is the velocity of the boat after 3 seconds. Vboat,y Initial position of the boat is: Ij = +
- My sister Crystal of mass M1=50kg is on an ice covered sidewalk with her dog Buster, who has mass M2=38kg. They are initially distanced d=5.00m apart. By pulling on the massless leash, my sister exerts a constant force F=30.00N on Buster, Buster slides towards her. How fast is Buster moving when he and my sister meet? (The leash is not rigid, so the distance can change between them. They also end at the same point, which means even if you cannot solve for their position, you can set them equal to one another)Two blocks are in contact on a frictionless horizontal surface. The blocks are accelerated by a single horizontal force applied to the block m1. Where F = 150.0N , m7= 18 kg, and m2= 12 kg. The contact force of block 1 on block 2 is F m1 m2 О 300 N O 60 N O 120 N O 90 N1. For the purposes of this problem make sure you remember that the positive x direction is to the right. A 0.500 kg crash cart was rolling to the left at &; = -1.00 m/s. It was hit with a rubber hammer. Just afterwards the cart was rolling to the right with Uf = +2.50 m/s. The hammer was in contact with the cart for only 5.00 milliseconds. Remember to specify the direction in your answers as either postive or negative. (a) What is the change in momentum, Ap, for the cart? (b) What is the Impulse, I, applied by the hammer to the cart? (c) What is the average force, F, applied by the hammer to the cart? +x X+ Vf +X
- A stationary 2.17-kg object is struck by a stick. The object experiences a horizontal force given by F = at - bt 2, where t is the time in seconds from the instant the stick first contacts the object. If a = 1,500,000 N/s and b = 20,000,000 N/s?, what is the speed of the object just after it comes away from the stick at t = 2.55 x 103 s? %3D4. The magnitude and direction of the velocities of two identical A frictionless balls before they strike each other are as shown. m m Assuming e = 0.8, determine the magnitude and direction of the velocity of each ball after the impact. 30 60° VA =9 m/s VB = 12 m/s1. Ember is sailing a fibre glass fishing boat of mass 1600 pounds and enters a marina at 2.58 m/s [W 25.0° N]. Over a time interval of 4.00 s Ember turned the boat towards a slip and slowed to 1.15 m/s [W 25.0° S]. i. What was the average acceleration of the boat during the parking sequence? Criteria: ii. If the boat hits a deck boat of mass 3000 pounds while parking, how much force will the fishing boat experience? Criteria:
- 3. An m = 55 kg sprinter, when starting a race, pushes back horizontally on the starting block with an average F = 590 N force for a time interval of t =0.68 second. a. What is the speed, in m/s, of the sprinter at the end of the 0.68 s? b. What is the distance, in meters, the sprinter traveled during the 0.68 s time interval?Please don't provide handwritten solution....Consider the three boxes m₂=8.83 kg, m=10.6 kg and m=4.72 kg which are connected by massless cords passing over frictionless pulleys. The box mrests on a frictionless tabletop while box m and box mare suspended at the ends of the cords connected to box m₁. What is the magnitude of acceleration and direction of motion of box m when the system is released from rest? mb ma mc 1.67 meters per second squared, downward 2.74 meters per second squared, upward 2.74 meters per second squared, downward 1.67 meters per second squared, upward