1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

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