V.  Dynamics Flash Cards Review
1. Find the a) horizontal and b) vertical
components of the force c) calculate the acceleration of the sled

a)
b)
c) 
2. In the diagram below, a box is on a frictionless horizontal surface with forces F1 and F2 acting as shown.
(1) moving at constant speed in the
direction
of F1 

3. Which pair of forces acting concurrently on an object will produce the resultant of a) greatest magnitude? b) smallest magnitude?

a)
b) 
4a) Find the Resultant (include direction) 4b) Find the Equilibrant (include direction)

a)
b)

Dynamics Review
5. A 6 newton force and an 8
newton force act concurrently on a box located on a frictionless horizontal
surface.
a) Find the Resultant force for 2nd, third, and fourth drawing to the left

a) b) 

6. Find the a) resultant of these two forces? b) equilibrant? 
a)
b) 

7. In the diagram below, a box is at rest on an inclined plane.
Which vector best represents the direction of the: 
a)
b)
c) 

8. The diagram below shows a block on a
horizontal
frictionless surface. A 100.newton force acts
on the block at an angle of 30.° above the horizontal.
What is the magnitude of force F if it establishes
equilibrium? (1) 50.0 N (3) 100. N (2) 86.6 N (4) 187 N 
Dynamics Review
9. Find the acceleration for each example above (frictionless surface)

1)
2) 3) 4) 
10. The diagram below shows a 10.0kilogram mass held at rest on a frictionless 30.0° incline by force F. What is the approximate magnitude of force F?
(1) 9.81 N (2) 49.1 N (3) 85.0 N (4) 98.1 N 

11. Find the acceleration for the example above (frictionless surface) 


12 a)
12 b) 12 c) 
Dynamics Review

13a) 13b) 
14. ______ is the gravitational force with which a planet attracts a mass.  14. 
15. When one object exerts a force on a second, the second exerts a force on the first that is a) _______ in magnitude and b) _________ in direction. 
a) b)

16. A
mosquito flying over a highway strikes the
windshield of a moving truck. Compared to the
magnitude of the force of the truck on the mosquito
during the collision, the magnitude of the force of the mosquito on the truck is (1) smaller (2) larger (3) the same 

17. When a satellite is a distance R from the
center
of Earth, the force due to gravity on the satellite
is F. What is the force due to gravity on the satellite
when its distance from the center of Earth is
3R? (1) F/9 (2) F/3 (3) F (4) 9F 
