Question

1) Which term best describes an object's resistance to a change in motion A) Force B) Inertia C) Acceleration D) Resistance 2) Two skaters, Cathy and Mike, are standing on a frozen pond. Mike has twice the mass as Cathy. If Mike pushes to the left on Cathy, what can be said about the forces and accelerations on each person? A) Cathy experiences a force and acceleration to the left, while Mike experiences an equal force in the opposite direction. Mike's acceleration is half of Cathy's and in the opposite direction. B) Both Cathy and Mike experience the same forces and accelerations. C) Cathy experiences a force and acceleration to the left, while Mike experiences no Cathy Mike force and no acceleration. 0 0 D) Cathy experiences a force and acceleration to the left, while Mike experiences an equal force in the opposite direction, but his acceleration is twice Cathy's. 3) Draw a free body diagram in the space provided showing all the forces acting on the box that is being pulled along the floor by a force at an angle @. F oto 2 O. 4) The figure shows the magnitude and direction of three forces acting on a 10 kg box on a frictionless floor, A) What is the net force acting on the box? 4) A) Box B) What will be the acceleration of the box? 4)B) Frictionless floor + x axis C) In what direction is the acceleration? 4)C)

Answer 1

04: (1) (8) Inertia (2) (A) cathy ex (A) Cathy experiences a force and acceleration to the left, while Mike experiences an equal force in the opposite direction. Mikely accen is had of Cathy's and in opp.dern, FCOS in Img JON LU0N m 1 ION BOX (4) Fnet = non (B) as Fred = 20 = 2 m/s (C) Aceckenaton is left ward. 5) (8) foichonal force must be equal to Jon. 6) (e) a constant acceleration. (A) Horizontal foro, Normal force, Croavitahonal Horace AN Fama = 1242 = 24N, N=mg= 129.8 - 11706N N I Do Fuso Foru are Fcoso, FSinco, N, ing. Fuso = 12x2 TE=au Cusboo = 48NI