Question 1 03 - C Force and Motion 20001 F F m F F m d d A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled a distance d. A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled a distance d. Solution The constant force produces a constant acceleration Newton’s second law vo = 0 x = d F d m v 1

Solution... The final speed of the block vf F F m x Force and Motion 20001 Solution... vf F F F F m m d A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled a distance d. x The constant force produces a constant acceleration Newton’s second law Solution F d m v The constant force produces a constant acceleration Newton’s second law vo = 0 x = d

Question 2 03 - C Force and Motion 20005 F F F m m A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled for a time t is. A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled for a time t is. Solution The constant force produces a constant acceleration Newton’s second law vo = 0 F m 2

Solution... The final speed of the block vf F F m Force and Motion 20005 Solution... vf F m F F m A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The speed of the block after being pulled for a time t is. The constant force produces a constant acceleration Newton’s second law Solution The constant force produces a constant acceleration Newton’s second law vo = 0 F m

Question 3 03 - C Force and Motion 20009 F m F m A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The distance the block moves during a time t is A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The distance the block moves during a time t is Solution The constant force produces a constant acceleration Newton’s second law vo = 0 xo = 0 F m 3

Solution... Distance the block moves F m The constant force produces a Force and Motion 20009 Solution... F m F m A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The distance the block moves during a time t is The constant force produces a constant acceleration Newton’s second law Solution F m The constant force produces a constant acceleration Newton’s second law xo = 0 vo = 0

Question 4 03 - C Force and Motion 20012 vo v = 0 m m vo v = 0 A block of mass m initially moving with a speed vo slides horizontally across the surface before coming to rest. The coefficient of kinetic friction between the block and the surface is mk. The time required for the block to come to rest is A block of mass m initially moving with a speed vo slides horizontally across the surface before coming to rest. The coefficient of kinetic friction between the block and the surface is mk. The time required for the block to come to rest is Solution Newton’s second law SF = - f The constant frictional force produces a constant acceleration. v = 0 Frictional force: m vo 4

The constant frictional constant acceleration. Time required for the block to stop 03 - C Force and Motion 20012 Solution... vo v = 0 m m vo v = 0 The constant frictional force produces a constant acceleration. A block of mass m initially moving with a speed vo slides horizontally across the surface before coming to rest. The coefficient of kinetic friction between the block and the surface is mk. The time required for the block to come to rest is Frictional force: Newton’s 2nd law Solution m vo v = 0 The constant frictional force produces a constant acceleration. Newton’s second law Frictional force: SF = - f v = 0

Question 5 03 - C Force and Motion 20015 m vo v = 0 d vo v = 0 m d A block of mass m given an initial speed vo slides across a horizontal surface for a distance d before coming to rest. The coefficient of kinetic friction between the block and the surface is A block of mass m given an initial speed vo slides across a horizontal surface for a distance d before coming to rest. The coefficient of kinetic friction between the block and the surface is Solution Newton’s second law SF = - f The constant frictional force produces a constant acceleration. v = 0 Frictional force: x = d m vo d 5

The constant frictional constant acceleration. The coefficient of kinetic friction 03 - C Force and Motion 20015 Solution... m vo v = 0 d vo v = 0 m d A block of mass m given an initial speed vo slides across a horizontal surface for a distance d before coming to rest. The coefficient of kinetic friction between the block and the surface is The constant frictional force produces a constant acceleration. Frictional force: Newton’s 2nd law Solution m vo v = 0 d The constant frictional force produces a constant acceleration. Newton’s second law Frictional force: SF = - f v = 0 x = d

Question 6 03 - C Force and Motion 20017 F d m F d m A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The force is applied through a distance d and the block acquires a final speed v. If the applied force had been doubled (2F) the blocks final speed would have been A block of mass m initially at rest on a horizontal frictionless surface is pulled by a constant horizontal force F. The force is applied through a distance d and the block acquires a final speed v. If the applied force had been doubled (2F) the blocks final speed would have been Solution Newton’s second law The constant accelerating force produces a constant acceleration. vo = 0 x = d vx is the speed acquired when accelerating force is 2F F d m 6

Solution... The blocks final speed F m d The constant accelerating force produces a constant acceleration. Newton’s second law