Q.1 - A 10 m long gliderwith a mass of 680kg is gliding horizotally through the air at 30 m/s when a 60 kg skydiver drops outby releasing his grip on the glider what is the glider's velocity just after the skydiver?
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Q.1 - A 10 m long gliderwith a mass of 680kg is gliding horizotally through the air at 30 m/s when a 60 kg skydiver drops outby releasing his grip on the glider what is the glider's velocity just after the skydiver?
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- Bicýcle Down and Up Hill Example Wa. A Otros 1 of 20 Cons, of E E; = Es Giveni V; -10 mls Y; = 7m Part A A 63 kg person starts traveling from rest down a waterslide 7.0 m above the ground. At the bottom of the waterslide, it then curves upwards by 1.0 m above the ground such that the person is consequently launched into the air. Ignoring friction, how fast is the person moving upon leaving the waterslide? Express your answer with the appropriate units. Value Units Submit Request Answer Mostrar todos Págin Lab_Work Ener..docx a V Lab_Conserv.docx MacBook Air F10 吕口 F5 SC * & %Vmax In a laboratory experiment, a sphere of diameter 8.0 mm is released from rest at t = 0 at the surface of honey in a jar, and the sphere's downward speed v when it travels in the honey is found to be given by v = Vmax (1 - e-t/T), where 0.040 m/s and T = 0.50 s. (a) Obtain an expression for a(t). (b) Draw graphs for v(t) and a(t) for the time interval 0 to 2.0 s. (c) Obtain an expression for x(t), choosing the positive x axis as downward, and draw the graph for this func- tion. (d) Use your x(t) graph to determine the time interval needed for the sphere to reach the bottom of the container if the surface of the honey is 0.10 m above the bottom of the jar. ... =A student throws a 110 g snowball at 8.5 m/s at the side of the schoolhouse, where it hits and sticks. ▼ Part A What is the magnitude of the average force on the wall if the duration of the collision is 0.19 s? Express your answer with the appropriate units. F=-3.68 Submit HA Provide Feedback N ? Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Next >
- 2. A6.0-kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant horizontal force of 12 N. Find the block's speed after it has moved 3.0m.Flying Circus of Physics A man of mass 71 kg drops to a concrete patio from a window 1.2 m above the patio. He neglects to bend his knees on landing, taking 2.8 cm to stop. (a) What is his average acceleration from when his feet first touch the patio to when he stops? (b) What is the magnitude of the average stopping force exerted on him by the patio? (a) Number (b) Number M. Jak w Units Units1. A 32.00kg child runs with a speed of 6.00m and jumps onto a 20.00kg sled initially at rest on a flat bed of snow (no friction). What is the resultant speed of the child and sled after the child is atop the sled? S m S 2. The child-sled combo travel at velocity 12.00 and collide with a large snow bank, coming to rest after a 0.37s collision. What is the magnitude of the average force exerted on the child-sled combo by the snow bank during the collision? O 1037.84 N 518.59 N 1686.49 N 648.65 N m S
- Il a 45 kg skater is moving at 17.1 m/s when he starts up a hill, how high will he go before he stops?A 61.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.7 m/s. The goal of this problem is to find the maximum height she attains and her speed at half maximum height. (a) What are the.interacting.objects and how.do.they.interact? This answer has not been graded yet (b) Select the height at which the athlete's speed is 9.7 m/s as y = 0. What is her kinetic energy at this point? What is the gravitational potential energy associated with the athlete? (c) What is her kinetic energy at maximum height? What is the gravitational potential energy associated with the athlete? (d) Write a general equation for energy conservation in this case and solve for the maximum height. Substitute and obtain a numerical answer. m (e) Write the general equation for energy conservation and solve for the velocity at half the maximum height. Substitute and obtain a numerical answer. m/s