A boat moving 5.1 m/s with respect to the water crosses a river moving at 4.7 m/s with respect to the shore. The river is 71 m wide. Determine (a) the resultant velocity, (b) time to cross the river and (c) distance downstream.
A boat moving 5.1 m/s with respect to the water crosses a river moving at 4.7...
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?
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?
3. A boat travels at 3.5 m/s with respect to the water in a river, while the velocity of the river itself is 1.2 m/s. The boat starts at a point on one shore and travels to a point directly across on the opposite shore. If the river is 62 m wide, how long does it take the boat to cross?
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
D | Question 13 5 pts A river flows due east at 3.0 m/s. A boat crosses the 300-m-wide river by maintaining a constant velocity of 10 m/s due north-east relative to the water. If no correction is made for the current, how far does the boat move by the time it reaches the far shore? O 173 m, upstream O 346 m, downstream O 45 m, upstream O 90 m, downstream
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 river is moving east at vWE = 3.97 m/s. A boat starts from the dock heading θ = 33.9 degrees north of west at vBW = 9.12 m/s, relative to the water. The river is w = 1380 m wide. Part (a) Write an expression for the speed of the boat with respect to Earth (vBE) in terms of variables from the problem statement. B) Write an expression for the time t it takes the boat to cross the...
An athlete crosses a 21 m wide river by swimming perpendicular to the water current at a speed of 0.35 m/s relative to the water. He reaches the opposite side at a distance 38 m downstream from his starting point. a) How fast is the water in the river flowing with respect to the ground in m/s? b) What is the speed of the swimmer with respect to a friend at rest on the ground in m/s?
An athlete crosses a 24.2 m wide river by swimming perpendicular to the water current at a speed of 0.4 m/s relative to the water. He reaches the opposite side at a distance of 45.3 m downstream from his starting point. How fast is the water in the river flowing with respect to the ground?