Problemas
A player pushes a 250 g hockey puck over frictionless ice with a constant force, causing it to accelerate at 24m/s^2 over a distance of 50.0 cm. a. Find the work done by the hockey player on the puck. I Instructions 250 of 250 words remaining square Apply the concept of the conservation of energy using the work-energy theorem to determine the change in the kinetic energy of the puck. I Instructions
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To find the work done by the hockey player on the puck, we can use the formula:Work = Force x DistanceGiven information:- Mass of the hockey puck = 250 g = 0.25 kg- Acceleration of the puck = 24 m/s²- Distance traveled by the puck = 50.0 cm = 0.5 mStep 1: Calculate the force applied by the player on the puck.Using Newton's second law, we have:Force = Mass x AccelerationForce = 0.25 kg x 24 m/s²Force = 6 NStep 2: Calculate the work done by the player on the puck.Work = Force x DistanceWork = 6 N x 0.5 mWork = 3 JTherefore, the work done by the hockey player on the puck is 3 J.To apply the concept of the conservation of energy using the work-energy theorem, we can use the formula:Work = Change in Kinetic EnergyGiven information:- Work done by the player on the puck = 3 JStep 1: Calculate the change in the kinetic energy of the puck.Work = Change in Kinetic Energy3 J = Change in Kinetic EnergyTherefore, the change in the kinetic energy of the puck is 3 J.