Explain how the velocity of a boat is affected by the current of a river.
Relative Velocity in Two-Dimensional Motion 3rd Six Weeks Exam

Quiz
•
Physics
•
10th Grade
•
Hard

Katelyn Buse
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It remains constant regardless of the current
It decreases as the current increases
It is altered by the river current, affecting the resultant velocity
It increases with the river current
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a boat travels across a river with a current, how do you determine the resultant velocity of the boat?
By subtracting the river's velocity from the boat's velocity
By adding the boat's velocity to the river's velocity
By vector addition of the boat's velocity relative to the water and the river's current velocity
By dividing the boat's velocity by the river's velocity
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A boat is heading directly across a river with a velocity of 5 m/s relative to the water. The river flows at 3 m/s. What is the magnitude of the boat's resultant velocity?
8 m/s
2 m/s
5 m/s
4 m/s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the steps to calculate the time it takes for a boat to cross a river when given the width of the river and the boat's velocity relative to the water.
Divide the width by the river's velocity
Multiply the width by the boat's velocity
Divide the width by the boat's velocity relative to the water
Add the width to the boat's velocity
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A river is 200 m wide and flows at 2 m/s. A boat travels at 4 m/s relative to the water. How long does it take for the boat to reach the opposite bank?
50 seconds
100 seconds
25 seconds
200 seconds
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A boat needs to reach a point directly across a 100 m wide river. The river flows at 1.5 m/s, and the boat's speed relative to the water is 3 m/s. At what angle should the boat be steered relative to the current to reach the opposite point directly?
30 degrees
45 degrees
60 degrees
90 degrees
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the angle θ when sin θ = 1.5/3?
30°
45°
60°
90°
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