Determine the greatest possible acceleration of the 975-kg race car so that its front tires do not leave the ground and none of the tires slip on the track. Neglect the mass of the tires. Express your answer to three significant figures and include the appropriate units. μA Omax = Value www ? Units
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- An automobile is going up a grade of 15 with an initial velocity of 30 m/s. The coefficient of static friction between the tires and the road is 0.7. a) What minimum distance does it take to stop the car? b) What minimum distance would it take to stop the car if it were going down the grade?For a short period of time, the frictional driving force acting on the wheels of the 2.4-Mg van is FD = (600t2) N, where t is in seconds. (Figure 1) Figure FD 1 of 1 Part A If the van has a speed of 25 km/h when t = 0, determine its speed when t = 5 s. Express your answer to three significant figures and include the appropriate units. V = Value Submit μA Provide Feedback Request Answer UnitsWhen the 13-lb block A is released from rest it lifts the two 18-lb weights B and C. Neglect the weight of the cord and the size of the pulleys. (Figure 1) Determine the maximum distance A will fall before its motion is momentarily stopped.Express your answer to three significant figures and include the appropriate units. THE ANSWER IS NOT 4.519 ft. The last guy was WRONG!
- An Atwood machine consists of a pair of masses attached to each other by a cord that passes over a pulley. Assume the pulley and the cord are ideal. If m1= 100 g and m2 = 0.15 kg, then what is the tension in the cord and what is the acceleration of the blocks (include the acceleration's direction)?An object of mass m is constrained to move on a horizontal frictionless circular track of radius m starts fIrom rest at time t = 0 and thereafter is puushed by an external force with constant magnitude F, always horizontal and tangent to the track. The horizontal component of the force exerted by the track on the object is given by А. О В. F C. Ft/mR D. Ft2/mR E. F/mg ans: DB h = 150 cm x = 50 cm L = 95 cm Mass = 0.8 kg at point G (so MMI = mL^2 about point A) At what acceleration (in m/s^2) will the object lift off the wall?
- Answer correlty in terms of kg ..........>>>Multiple-object systems without friction: The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it 0.90's to reach the floor. What is the mass m of the other block? The pulley has no appreciable mass or friction. (60 kg) m ------- 100 kg 1.0 m1. In the system shown in the figure, m₁ = 18.3 kg, m₂ = 38.2 kg, a = 48.2°, and the coefficient of kinetic friction between the block with mass m₁ and the inclined surface is uk. What coefficient of friction is needed for the hanging block to drop 9.45 m in the first 2.50 s after the system is released from rest? (Hint: it is accelerating downward, so don't treat it like it is moving at a constant speed.) m₁ α m₂
- In the figure below, the box is initially at rest. Find the speed, in m/s, of the box after 2.00 seconds. [Assume that the box moves on a very wide frictionless surface, and the tension force from the string is being applied continuously. Assume g = 9.80 m/s²] [Answer with 3 significant figures] (20%) 8.00 kg 40⁰ T= 30.0 NPls answer asap. Thank you Note: Computation must be complete and answer in 2 decimal places.In the very Dutch sport of Fierljeppen, athletes run up to a long pole and then use it to vault across a canal as shown in (Figure 1). At the very top of his arc, a 70 kg vaulter is moving at 2.9 m/s and is 5.5 m from the bottom end of the pole. What is the magnitude of the vertical force that the pole exerts on the vaulter? Express your answer with the appropriate units.