A 58 kg person is parachuting and experiencing a downward acceleration of 2.8 m/s2. The mass of the parachute is 3.1 kg. (a) What is the upward force on the open parachute from the air? (b) What is the magnitude of the downward force on the parachute from the person?
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- Two blocks A and B with mA = 0.9 kg and mB = 0.80 kg are connected by a string of negligible mass. They rest on a frictionless horizontal surface. You pull on block A with a horizontal force of 7.8 N. (A) Find the magnitude of the acceleration (in m/s2) of the blocks. (B) Determine the tension (in N) in the string connecting the two blocks.If a 3.10 kg body has an acceleration of 7.20 m/s directed at 38.0° to the positive x axis, what is the x component of the net force acting on the body?A 9 kg fish hangs from a fishing line. The fish is lowered, such that the tension in the line is 60% of what the tension would be at rest. What is the magnitude of the acceleration of the fish? Answer to 3 sig figs.
- You are designing a high-speed elevator for a new skyscraper. The elevator will have a mass limit of 2400 kg (including passengers). For passenger comfort, you choose the maximum ascent speed to be 18.0 m/s, the maximum descent speed to be 10.0 m/s, and the maximum acceleration magnitude to be 3.30 m/s2. Ignore friction. (a)What is the maximum upward force that the supporting cables exert on the elevator car? ___kN (b)What is the minimum upward force that the supporting cables exert on the elevator car? ____kNA skydiver, who weighs 687 N, is falling at a constant speed with his parachute open. Consider the apparatus that connects the parachute to the skydiver to be part of the parachute. The parachute pulls upward on the skydiver with a force of 620 N. Find the magnitude of the force on the skydiver due to the air. Needs Complete typed solution with 100 % accuracy.A car of mass 1400 kg is pulled a 560 kg trailer away from parking lot with an acceleration of 1.85 m/s2. (a) What is the net force exerted on the trailer? (b) What force does the trailer exert on the car? (c) What is the net force acting on the car?
- Problem 4: Two teams of seven members engage in a tug of war. Each of the first team's members has an average mass of 67 kg and exerts an average force of 1350 N. Each of the second team's members has an average mass of 72 kg and exerts an average force of 1365 N. a) What is the magnitude of the acceleration of the two teams? b) What is the tension in the section of the rope between the teams?You have gone skiing at the Poconos. You (mass 45 Kg) are being pulled up a 300 snow-covered slope by a tow rope at constant speed 0.5 m/s. Ignore friction. Calculate the normal force on you and the tension in the rope. (Hint: Draw a force diagram, i.e., all the forces acting on you.) a) Normal force = 382 N, Tension = 220.5 N b) Normal force = 220.5 N, Tension = 382 NAn elevator filled with passengers has a mass of 1.70 × 103 kg . (a) The elevator accelerates upward from rest at a rate of 1.20 m/s2 for 1.50 s. Calculate the tension in the cable supporting the elevator. (b) The elevator continues upward at constant velocity for 8.50 s. What is the tension in the cable during this time? (c) The elevator decelerates at a rate of 0.600 m/s2 for 3.00 s. What is the tension in the cable during deceleration? (d) How high has the elevator moved above its original starting point, and what is its final velocity?