A River is flowing at 4 m/s right. A barge is moving while a man is on a pair of roller skates on it while a person on the shore is watching. What is the relative velocity, if the man is:
A) Moving 10 m/s right
B) Moving 12 m/s left
C) Moving 0m/s
A River is flowing at 4 m/s right. A barge is moving while a man is...
2. A boat crosses a river. The river is flowing at 4 m/s. The boat starts a Point A and travels 6 m/s relative to the river, oriented perpendicular to the current. How far downstream will the boat have been carried when it reaches the opposite shore at Point B? - Ax =? + VR = 4 m/s 75 VB/R = 6 m/s
A barge of mass M = 300 kg is floating on a lake (assume there are no forces between the barge and the water in the plane of the lake and that the water is not moving). The barge is moving at a velocity vo = 0.4 m/s along the +x direction. As the barge floats by, a man of mass m = 90 kg standing at the edge of the lake takes a running start and jumps in the...
A river flows due east at 2.69 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 12.2 m/s due north relative to the water. What is (a) the magnitude (m/s) and (b) the direction (degrees east of north) of the boat’s velocity relative to shore? (c) If the river is 324 m wide, how far (m) downstream has the boat moved by the time it reaches the north shore?
A river flows due east at 1. 50 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 10.0 m/s due north relative to the water. (a) What is the velocity of the boat relative to the shore? (b) If the river is 300 m wide, how far downstream has the boat moved by the time it reaches the north shore?
The man can row the boat in still water with a speed of 5 m/s.A) If the river is flowing at 2 m/s, determine the speed of the boat.B) Determine the angle θ he must direct the boat so that it travels from A to B.
3. (24 points) A river is flowing due west at 9 mi/h. A man heads his motorboat in the direction N 60°W in the river. The speed of the motorboat relative to the water is 15 mi/h. a Express the velocity of the river as a vector, r. Give exact values. b. Express the velocity of the motor boat relative to the water as a vector, m. Give exact values. c. Express the true velocity of the motorboat as a...
24. A 1700kg car moving at 25 m/s to the right hits a 2500kg truck moving at 10 m/s to the left. If the collision is elastic, what is the velocity of the truck after the collision? (a) 16.7 m/s to the left (b) 16.7 m/s to the right (c) 18.3 m/s to the left (d) 18.3 m/s to the right 25. A 1700kg car moving at 25 m/s to the right hits a 2500kg truck moving at 10 m/s...
A 2 kg ball moving at 4 m/s to the right collides with a 3.0 kg ball moving at 2.0 m/s to the left. A) What is the total momentum before the collision? B) After the collision, if the first ball now moves at 1.2 m/s to the left, what is the momentum of the second ball? C) Then, using your answer for B, find the velocity of the second ball after the collision. (right is + left is -)...
3) 35 pts. Water in a river flows with a component downstream (x-direction) of 6 m/s and a component across the stream (y -direction) of 4 m/s. A boat is attempting to cross the river. The velocity of the boat relative to the water is 20 m/s at an angle of 70 degrees with respect to the x-axis. Determine the velocity of the boat relative to the shore.
A boat is crossing a river where water flows at 4 m/s. If the boat is moving with water speed of 6 m/s, aiming straight toward the opposite river bank as seen by a person on the boat: (i) What are the two components of the velocity of the boat as measured by someone at rest on the river bank? (ii) What is the ground speed of the boat?