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WorksheetsForces and Motion in Two Dimensions
Total questions: 21
Worksheet time: 41mins
Vector A has a magnitudde of 30 units. Vector B is perpendicular to vector A and has a magnitude of 40 units. What would the magnitude of resultant vector A + B be?
10 units
50 units
70 units
zero
A motoboat heads due east at 5.0 m/s across a river that flow toward the south at a speed of 5.0 m/s.
What is the resultant velocity relative to an observer on the shore?
3.2 m/s to the southeast
5.0 m/s to the southeast
7.1 m/s to the southeast
10.0 m/s to the southeast
The pilot of a plane measures an air velocity of 165 km/h south relative to the plane. An observer on the ground sees the plane pass overhead at a velocity of 145 km/h towards to the north. What's the velocity of the wind that is affecting the plane relative to the observer?
20 km/h to the north
20 km/h to the south
165 km/h to the north
310 km/h to the south
A glofer takes two putts to sink his ball in the hole once he is on the green. The first putt displaces the ball 6.00 m east, and the second putt displaces the ball 5.40 m south. What displacement would put the ball in the hole in one putt?
11.40 m southeast
8.07 m at 48.0° south of east
3.32 m at 42.0° south of east
8.07 m at 42.0° south of east
A girl riding a bicycle at 2.0 m/s throws a tennis ball horizontally forward at a speed of 1.0 m/s from a height of 1.5 m. At the same moment, a boy standing on the sidewalk drops a tennis ball straight down from a height of 1.5 m.
What's the initial speed of the girl's ball relative to the boy?
1.0 m/s
1.5 m/s
2.0 m/s
3.0 m/s
If the sign is 300 N, What is the tension for either wire?
96 N
150 N
196 N
233 N
Which of the following statements is ALWAYS true of an object in equilibrium?
The object maintains its state of motion.
The object is at rest.
The object is not accelerating.
The object's velocity is not changing.
The sum of all forces acting on the object is 0.
How would you find the magnitude of a resultant vector that has an x component of 8 N and a y component of 6 N?
Square Root of (8^2 + 6^2)
Square Root of (8^2 - 6^2)
Tan^-1 (8/6)
Tan^-1 (6/8)
How would you find the direction of a vector that has an x component of 8 N and a y component of 6 N?
Square Root of (8^2 + 6^2)
Square Root of (8^2 - 6^2)
Tan^-1 (8/6)
Tan^-1 (6/8)
What is the name of Luke’s childhood best friend, who later served alongside him in the Rebellion?
Biggs Darklighter
Nien Numb
Wedge Antilles
