Answer key for Physics Test

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

• ? 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