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A cannon is launched at an angle of 45.00 and the cannon ball lands 301 m away. What was the velocity of the cannon ball
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. What is the mechanical energy lost due to friction
A cannon is launched at an angle of 45.00 and the cannon ball lands 301 m away. How long was the cannon ball in the air
A cannonball is launched from ground level and lands at ground level. If it is launched with a speed of 76.2 m/s and stays in the air for 6.4 s, What angle was the cannon shot at
A soccer player kicks a ball from ground level with a velocity of 23.5 m/s 38.20 above the horizontal and it lands at ground level. determine the "hang time" of the ball
a snowboarder has a mass of 70 kg and is being carried by a lift. The lift has a constant inclination of 30o, what power must the motor produce to achieve the task
During a particular car crash, it takes just 0.18 sec for the car to come to a complete stop from 50 km/hour. At what rate is the car accelerating during the crash
A pendulum bob with a mass of 0.38 kg is attached to a 1.5 m long string as shown. determine the change in its gravitational potential energy
An oscilloscope shows a steady sinusoidal signal of 5 Volt peak to peak, if we have voltage knob on 2 volts per division, how many divisions will be read on the screen
A sled slides down a hill 45 meters high with a slope of 25o. The total mass of the sled plus contents is 247 kg. find the velocity of the sled at the bottom
A constant force of 23 N pulls on a 12 kg block on a horizontal surface. What is the work done by the constant force
A stick of dynamite explodes into two pieces of masses of 3.0 kg and 2.0 kg. how far does the other piece slide
A lady pushes down on a 35.0 kg crate (constrained to move along a horizontal floor) at an angle of 47.3 degrees to the horizontal with a force of 125N along a frictionless surface. what is the norm
A dog chasing a ball starts at rest and accelerates uniformly over a distance of 5 meters. What is the dog's acceleration
Two parallel wires with centers separated by 8.7mm each carry 11A in the opposite direction. Find the magnitude of the force per unit length on each wire
A block of mass m= 2.00kg is released from rest at h=0.500m above the surface of a table, at the top of a 30 degree incline. What is the velocity of the block as it leaves the incline
A 23.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 33.0° with the vertical, find the child's speed at the lowest position
A 0.495-kg mass is attached to a horizontal spring with k = 105 N/m. The mass slides across a frictionless surface. Find the mechanical energy of the system
when an object is dropped from a height of 20.0m above the surface of planet B, what is the acceleration of a falling object close to this planet
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. how much work is the roping doing on the sledge
A man of mass 91 kg drops to a concrete patio from a window 0.63 m above the patio. What is the magnitude of the average stopping force exerted on him by the patio
a ferris wheel has a radius of 11.0 m and rotates once every 11 s, what is the force of the chair seat on you
The figure shows three blocks attached by cords that loop over frictionless pulleys. Block B lies on a frictionless table; what is the tension in the cord at the right
A Baseball player rounds third base and is heading for home when he is signalled by the base coach to slide. find the coefficient of kinetic friction between him and the ground
Sam, whose mass is 71.0kg , takes off down a 45.0m high, 8.00? slope on his jet-powered skis. What is the coefficient of kinetic friction of his skis on snow