Physics, 02.10.2019 14:30 jonellelewis2897
Agolf ball is struck at ground level. the speed of the golf ball as a function of the time is shown in figure 4-36, where t = 0 at the instant the ball is struck. the scaling on the vertical axis is set by va=16 m/s and vb=32 m/s. answer the following questions:
(a) how far does the golf ball travel horizontally before returning to ground level?
(b) what is the maximum height above ground level attained by the ball?
Answers: 2
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0Β°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 23.06.2019 00:30
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 1
Physics, 23.06.2019 17:00
Asoccer ball of mass 0.43 kg is rolling with velocity < 0, 0, 1.8> m/s, when you kick it. your kick delivers an impulse of magnitude 2.7 nΓ’Β·s in the direction. the net force on the rolling ball, due to the air and the grass, is 0.22 n in the direction opposite to the direction of the ball's momentum. using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked. use the approximation . (express your answer in vector form.) < entry field with incorrect answer 12.97 , entry field with correct answer 00 , entry field with incorrect answer 2.7 > m
Answers: 3
Agolf ball is struck at ground level. the speed of the golf ball as a function of the time is shown...
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