23 A stone is thrown straight up At the top of its path the

Last updated: 6/15/2023

23 A stone is thrown straight up At the top of its path the net force acting on it is equal to its weight greater than its weight 24 Is it possible for an object moving with a constant speed to accelerate Explain a Yes although the speed is constant the object s direction can be changing Yes if an object is moving it can experience acceleration b No an object can accelerate only if there is a net force acting on it d No if the speed is constant then the acceleration is equal to zero C a b C zero d greater than zero but less than its weight a 25 When a car drives around a traffic circle at constant speed c d The car is accelerating toward the center of the traffic circle The car is accelerating away from the center of the circle The car is accelerating forward The car is not accelerating 26 A 65 kg person is riding on a Ferris Wheel with a radius of 9 3 m As the wheel turns the speed of the rider is 4 8 m s What is the rider s acceleration 2 5 m s b 58 m s c 4 5 m s 27 A net force F accelerates a mass m with an acceleration a If the same net force is applied to an object with twice the mass then the acceleration will be half as much b twice as much c four times as much d one fourth as much c 8 0 kg FARB 28 When a person is on a circular motion ride like turkish twist what causes the person to move in a circle a There is no force it s the inertia of the person 6 The force of friction between the person and the wall of the ride C TH ormal force from the wall of the ride d The weight of the rider 30 When an object is moving at a constant velocity a the forces on the object are unbalanced b the net force is equal to the velocity WAS d 6 6 m s 29 An object sits on a frictionless surface A 12 N horizontal force is applied to the object and it accelerates at 3 0 m s What is the mass of the object a 4 0 kg b 32 kg c the net force equals zero d only one force acts on the object d 78 N