7. The diagram below shows a boat moving north in a river at 3 m/s while the current in theriver moves south at 1 m/s.
N
WHE
S
Current
1 m/s
Boat
3 m/s
How will the boat be affected if it enters a part of the river where the current
is moving south at 2m/s?
What is the answer

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency