1. Answer key for Physics Test
Motion and forces in 2D

2. Q1 Resultant = sum of all vectors applied
Equilibriant = vector equal in magnitude to the resultant, but opposite in direction

3. Q2 Horizontal velocity = 5.3 m/s away from house
Vertical velocity = 3.3 m/s down

4. Q3

5. Q4
Systems of equations
Acceleration = 3.83 m/s2

6. Q5
8.02 m [ S 4 W]
8.02 m [W 86 S]

7. Q6
Μ = 0.19

8. Q7

9. Q8 Determine Fnet, forces are slowing toboggan
Find acceleration: -6.4 m/s2
Use acceleration to find displacement
D =2.8 m

10. Q9
70 N [N 13 E]
70 N [E 77N]

11. Q 10-11
10) A
11) B