The 12 kg boy jumps on the 3-kg skateboard with a horizontal velocity of 5 m/s. Determine the height ‘h’ the boy reaches up the inclined plane before momentarily coming to rest. Neglect the skateboard’s rolling resistance.
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The 12 kg boy jumps on the 3-kg skateboard with a horizontal velocity of 5 m/s. Determine the height ‘h’ the boy reaches up the inclined plane before momentarily coming to rest. Neglect the skateboard’s rolling resistance.
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- Nikola Jokic is running at 8.5 m/s directly toward the basket when he jumps into the air to dunk the ball. He is only able to maintain a constant horizontal jumping velocity of 85% of his running velocity during the entire flight phase of the jump. (a) What does his vertical takeoff velocity in m/s have to be when he first leaves the ground so that his center of mass is able to achieve a maximal vertical displacement of 0.7 meters during the jump? (b) How far from the basket (measured in the horizontal direction) in meters must he start his jump so that he reaches his maximum vertical jump displacement at the same time that he reaches the basket?10) Take a look at the picture below. The mass is fire up along the inclined plane. Sometime later it returns to the initial position with a velocity that is 4 of its initial value. Calculate the coefficient of kinetic friction. Massa own Vup frickion Here. going Vdowin 37.10In a Broadway performance, an 80.0-kg actor swings from a3.75-m-long cable that is horizontal when he starts. At the bottomof his arc, he picks up his 55.0-kg costar in an inelasticcollision. What maximum height do they reach after theirupward swing?
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