Physics question and answers for June 18, 2024
- Q A large rock has collapsed into a tunnel, barring the group's path forward. Havard, the largest ofthe adventurers, steps forward and pushes 227 kg rock forward at a constant velocity....
- Q A 2 kg book is held against a vertical wall. The coefficient of friction is 0.45. What is the minimum force that must be applied on the book, perpendicular to...
- Q John starts pushing on a 100 kg bench with a force of 380 Newtons because he wants to move it down the road. What is the size of the friction...
- Q A 56 kilogram cart is pulled along a horizontal road at constant speed of 2 m/s by a horizontal rope. The coefficient of friction between card and road is 0.69....
- Q A coin placed 30.8 cm from the center of a rotating, horizontal turntable slips when its speed is 49.6 cm/s.(a) What force causes the centripetal acceleration when the coin is...
- Q Fill in the missing words and values. A child with a weight of 178 N (40 lbs) clings to a steel "fire pole" slide on a playground. What static frictional...
- Q An accident victim with a broken leg is being placed intraction. The patient wears a special boot with a pulleyattached to the sole. The foot and boot together have amass...
- Q The choice of materials for an exciting playground slide should(1 point)O have a large coefficient of kinetic friction between cloth and the slide materialO have a small coefficient of kinetic...
- Q Sam, whose mass is 71 kg, takes off across levelsnow on his jet-powered skis. The skis have athrust of 250 N and a coefficient of kinetic frictionon snow of 0.1....
- Q A football coach sits on a sled while two of hisplayers build their strength by dragging the sledacross the field with ropes. The friction force on thesled is 1300 N...
- Q A 0.43-kilogram soccer ball sits on the grass. The coefficient of static friction betweenthe soccer ball and the grass is 0.4. A players kicks the ball horizontally, resulting in aninitial...
- Q Bonnie and Clyde are sliding a 295 kg bank safeacross the floor to their getaway car. The safeslides with a constant speed if Clyde pushes frombehind with 373 N of...
- Q The 2.1 kg. 35-cm-diameter disk in (Eigure 1) is spinning at 340rpm.Part AHow much friction force must the brake apply to the rim to bring the disk to a halt...
- Q A 1500 kg car traveling at a speed of 34 m/s skids to a halt onwet concrete where ? = 0.60.For the steps and strategies involved in solving a similar...
- Q A ski starts from rest and slides down a 28 incline 95 m long.If the coefficient of friction is 0.090, what is the ski's speed at the base of the...
- Q A 50,000 kg locomotive is traveling at 15 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop? Assume the...
- Q A 4400 kg truck is parked on a 15 slope. How big is the friction force on the truck? The coefficient of static friction between the tires and the road...
- Q Jason works for a moving company. A 45 kg wooden crate is sitting on the wooden ramp of his truck, the ramp is angled at 11. What is the magnitude...
- Q Two roommates are trying to get an armchair into their apartment. They found the armchair did not fit through the front door, so they decide to take it below their...
- Q During an exam, Rihanna must demonstrate her understanding of fluid friction forces. She is asked to develop an experiment involving a marshmallow and the force of fluid friction. In this...
- Q A block is kept on a truck which has finite coefficient of friction with block. Acceleration of truck is continuously increased. Mark the correct statement.If block starts slipping first, it...
- Q You are moving into a new place, and you rented a U-Haul cargo van to transport your home furniture and different boxes. Moving the boxes from the house to the...
- Q 1. A sled of mass 62.0 kg is pulled along snow-covered flat ground.The static friction coefficient is 0.300 and the kinetic frictioncoefficient is 0.100,a) What minimum force will be needed...
- Q Three blocks of mass m, 2m, and 3m are being pushed to the right at a constant speed with a force of 12N. The force of kinetic friction on m...
- Q A rightward force of 302 N is applied to a 28 6-kg crate to accelerate it across the floor. The coefficient of friction between the crate and the floor is...
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