The airplane executes the vertical loop defined by r² = [810(10³) cos 20 m². (Figure 1) Figure < - [810(10³) cos 2 0]m² 1 of 1 > Part A If the pilot maintains a constant speed v= 122 m/s along the path, determine the normal force the seat exerts on him at the instant = 0°. The pilot has a mass of 75 kg. Express your answer to three significant figures and include the appropriate units. F = LO Ti Submit 4 μА Value Provide Feedback Units Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining Next >
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- Three objects are connected as shown in the figure. The strings and frictionless pulleys have negligible masses. The coefficient of kinetic friction is 0.25 and static friction is 0.30. Block A has a mass of 3 kg and block B has a mass of 4 kg. a) What is the maximum mass block C can have before block B will start to move? b) If block C has a mass of 7 kg. and was 1 m above the ground, how long would it take block C to hit the ground starting from rest?Figure shows a block of mass m resting on a 20° slope. The block has coefficients of friction μ = 0.78 and = 0.47 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.0 kg. (Figure 1) Figure Part A m= Part B What is the minimum mass m that will stick and not slip? Express your answer to three significant figures and include the appropriate units μA Value a= m 20⁰ Value Units www Units ? If this minimum mass is nudged ever so slightly, it will start being pulled up the incline. What acceleration will Express your answer to three significant figures and include the appropriate units. 2 kg 1 of 1 ?In (Figure 1), F = {500i - 300j +400k} N. Figure 6 2m 2 -1m D 6 m 3m 1 of 1 Part A Determine the magnitude of the projection of the force F acting along the cable C'A. Express your answer to three significant figures and include the appropriate units. FoncA= Submit Provide Feedback Di HÅ Value Request Answer F Units ?
- A ball with mass 0.85 kg is thrown upward with initial velocity 30 m/s from the roof of a building 40 m high. Assume there is a force due to v² directed opposite to the velocity, air resistance of magnitude 1325 where the velocity v is measured in m/s. NOTE: Use g=9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds c) Use a graphing utility to plot the graphs of velocity and position versus time.A train is traveling up a 2.78 ° incline at a speed of 4.44 m/s when the last car breaks free and begins to coast without friction. Part A How long does it take for the last car to come to rest momentarily? Express your answer using two significant figures. HV ΑΣφ t = S Submit Request Answer Part B How far did the last car travel before momentarily coming to rest? Express your answer using two significant figures. ΑΣφ ? S = m Submit Request Answer Provide FeedbackDavid throws a 50 kg cart down a ramp with an initial speed of vi = 6 m/s. The ramp is at an angle of 20◦, and the coefficient of kinetic friction between the cart and the ramp is µk = 0.25. Additionally, the coefficient of static friction is µs = 0.55. How much time does it take to reach Ryan who is 10 m away? Assume that the cart slides and doesn’t roll.
- A block of mass m = 14kg rests on an inclined plane with a coefficient of static friction of mu_{s} = 0.11 between the block and the plane. The inclined plane is L = 6.8m long and it has a height of h = 3.95 m at its tallest point a. What angle in degrees does the plans make with respect to the horizontal B.what is the magnitude of the normal force, Fn in newtons that acts on the block C. What component of the force of gravity along with the plan fgx in newton? Will the block slide?A ball with mass 0.75 kg is thrown upward with initial velocity 30 m/s from the roof of a building 10 m high. Assume there is a force due to |v| air resistance of magnitude directed opposite to the velocity, where 30 the velocity v is measured in m/s. NOTE: Use g=9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: secondsConsider a 55-N weight suspended by two wires as shown in the accompanying figure. If the magnitude of vector F₁ is 36 N, find angle a and the magnitude of vector F2. The measure of angle a is (Round to two decimal places as needed.) The magnitude of vector F₂ is N. (Round to two decimal places as needed.) Jα FR 57° (F2
- The m = 9.60 kg block in the figure(Figure 1) is held in place by the massless rope passing over two massless, frictionless pulleys. Figure T₂ T₁ T₁ m T3 T5 1 of 1 > Part A Find the tensions T₁ to T and the magnitude of force F. Enter your answers numerically separated by commas. Ψ— ΑΣΦ T1, T2, T3, T4, T5, F: = Submit Provide Feedback Request Answer Ć סי ? Nents Once I went skiing. I was at the bottom of a snow ramp with a speed of 14.0 m/s. Assuming that the coefficient of friction between the snow and the skis was 0.2 determine my speed at the top of the ramp. The angle theta with the horizontal was 25°. The rise of the snow ramp was h=3.5 meters high. h Skier Met < Previous OL 1