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A ball is projected with a speed 23.8 m/s from a bridge that is 49.07 meter above the water. Use energy techniques to find the speed of the ballinstat that it strikes the water?
A 900- kg car collides with a 1300- kg car that was initially at rest at the origin of an x-y coordinate system. What was the initial speed of the lighter car
Objective questions based on kinematics.
An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. Calculate the speed of the third piece of shrapnel
A soldier has a huge contraption that notches a large 1 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
A sled is dragged along a horizontal path at a constant speed of 1.5 m/s by a rope that is inclined at an angle of 30.0° with respect to the horizontal, How much work is done by the rope on the sled
A thin rod (length = 1.37 m) is oriented vertically, with itsbottom end attached to the floor by means of a frictionless hinge.The mass of the rod may be ignored, compared to the mass of theobject fixed to the top of the r
A truck is traveling on a level road. The driver applies the brakes causing the truck to decelerate by an amount g/2. This causes a box in the rear of the truck to slide forward. If the coefficient of sliding friction between the box and the truckbed..
One charged particle of -1.3 × 10-6 C is moving north with a velocity of 5 × 106 m/s. What force is exerted between the particles
An all-terrain vehicle of 2000 kg mass moves up a 15 degree slope at a constant velocity of 6 m/s. The rate of change of gravitational potential energy with time is
A submarine is 319 m horizontally out from the shore and 111 m beneath the surface of the water. A laser beam is sent from the submarine so that it strikes the surface of the water at a point 209 m from the shore.
A 0.750 kg block is attached to a spring with spring constant 15 N/m. While the block is sitting at rest, What is the amplitude of the subsequent oscillations
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