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Consider an athlete who jumps a horizontal distance of 9m after reaching a maximum height of 1.5m. What was the takeoff speed v0 of the athlete? Discuss how the athlete can improve his/her performance.
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, determine the largest angle
A woman on a bridge 104 m high sees a raft floating at a constant speed on the river below, She drops a stone from rest in an attempt to hit the raft, Find the speed of the raft
What is the net charge inside the sphere.
A 2.5kg mass is attached to a spring and placed on the horizontal, smooth surface. A horizontal force of 18.4 N is necessary to hold the mass at rest while it is pulled 0.210 m from its equilibrium position.
There are two forces on the 2.13 kg box in the overhead view of the figure but only one is shown. For F1 = 26.7 N, a = 14.5 m/s2, and ? = 31.1°, find the second force in unit-vector notation
How long does this pendulum take for one oscillation? Presume that all displacement angles are small.
Find out the normal force exerted on the crate by the elevator.
Suppose a train engineer is climbing a vertical ladder at a speed of 0.2m/s while the train is slowly coasting east at 0.70 m/s. Find out the vector of the engineer relative to the ground in rectangular notation.
Of the charge Q initially on a tiny sphere, a portion q is to be transferred to a second, For what value of q/Q>0.5 will the electrostatic force between the two parts have 1/2 of the maximum possible value
A pitcher throws a curveball that reaches the catcher in 0.59 s, What is the angular displacement of the baseball (in radians) as it travels from the pitcher to the catcher
A 131 kg sign hangs between two buildings by two cables. Cable 1 is attached at a 36 degree angle wrt to the horizontal, and Cable 2 is attached at a 24 degree angle wrt to the horizontal. What is the tension in cable 1.
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