1. A boat can be rowed at VBW = 7.5 km/h in still water. Assume that all quantities are correct to 2 significant figures. (a) How much time is required to row 1.1 km downstream (East) in a river moving ✓ws = 3.4 km/h relative to the shore? Think & Prepare In all the questions below, think about motion from the point of view of an observer on the boat and the point of view of an observer on the shore. 1. The motion of the boat on water Vgw is the velcoity of the boat from the point of view of the observer on the boat. V Bw = 7.5 km/h. Owe back... 2. Let the velocity of the river with respect to an observer on the shore be Vws = 3.4 km/h 3. The velocity of the boat as seen from the shore, Vas takes into account the motion of the river. VBS = VoW+Vws Enter to 2 significant figures Time required to row 1.1 downstream = [ Think for part (a) When going downstream, the velocity of the boat as observed from the shore will increase or decrease compared to its value in still water? By how much? (b) How much time is required for the return trip? Enter to 2 significant figures Time for the return trip = [ min min
1. A boat can be rowed at VBW = 7.5 km/h in still water. Assume that all quantities are correct to 2 significant figures. (a) How much time is required to row 1.1 km downstream (East) in a river moving ✓ws = 3.4 km/h relative to the shore? Think & Prepare In all the questions below, think about motion from the point of view of an observer on the boat and the point of view of an observer on the shore. 1. The motion of the boat on water Vgw is the velcoity of the boat from the point of view of the observer on the boat. V Bw = 7.5 km/h. Owe back... 2. Let the velocity of the river with respect to an observer on the shore be Vws = 3.4 km/h 3. The velocity of the boat as seen from the shore, Vas takes into account the motion of the river. VBS = VoW+Vws Enter to 2 significant figures Time required to row 1.1 downstream = [ Think for part (a) When going downstream, the velocity of the boat as observed from the shore will increase or decrease compared to its value in still water? By how much? (b) How much time is required for the return trip? Enter to 2 significant figures Time for the return trip = [ min min
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 76P: A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50 km/h,...
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