What are magnitudes of horizontal and vertical components

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Q. A stone is catapulted at time t=0 with an initial velocity of magnitude 20 m/s and at an angle of 400 above the horizontal plane. What are the magnitudes of the horizontal and vertical components of its displacement from the catapult site at t= 5 sec?

Q. A uniform-density 8 kg disk of radius 0.27 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is wrapped tightly around the disk, and you pull on the string with a constant force of 39 N through a distance of 0.7 m. Now what is the angular speed?

Reference no: EM1350143

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