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Question: Superman throws a boulder of weight 1950N at an adversary on the surface of the earth, where the magnitude of the acceleration due to gravity, g = 9.80m/s+.
Part A: What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 14.6m/s2?
I need help to determine what horizontal force Superman must apply to the boulder.
The engine of a locomotive exerts a constant force of magnitude 8.5 105 N to accelerate a train to 72 km/h. Determine the time taken for the train of mass 1.3 107 kg to reach this speed from rest
A hockey puck on a frozen pond is given an initial speed of 20 m/s. If the puck forever remains on the ice and slides 115 m before coming to rest, decide the coefficient of kinetic friction between the ice and puck.
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Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. evaluate the astronaut's orbital speed
A pitcher throws a fastball horizontally at a speed of 140 km/h toward home plate, 18.4 m away. (a) If the batter's combined reaction and swing times total 0.350 s, how long (in seconds) can the batter watch the ball after it has left the pitcher's h..
A 8.41 kg crate slides on a horizontal surface. The coefficient of kinetic friction between the surface and the crate is 0.496. what is the magnitude of the external force acting on the crate
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A 45.0-kg girl is standing on a 158-kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is the velocity of the plank relative to the surface of ice
A rock is thrown from a cliff at an angle θ to the horizontal. Neglect air resistance. Starting From Newton's second law, determine the location of the rock as a function of time in horizontal and vertical Cartesian coordinates
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