1. Determine distance and displacement of a boat that travels North 12 mile and
ID: 1385022 • Letter: 1
Question
1. Determine distance and displacement of a boat that travels North 12 mile and then East 5 miles ? 2. A bike is moving at a constant velocity of 25 ft/sec, how long will it take to travel 120 miles ? How far will this bike travel in 15 minutes? 3. A rock is dropped from a bridge; it hits the water in 9.5 seconds. What is the hieght if the bridge form water and what velocity is the rock traveling at impact ? 1. Determine distance and displacement of a boat that travels North 12 mile and then East 5 miles ? 2. A bike is moving at a constant velocity of 25 ft/sec, how long will it take to travel 120 miles ? How far will this bike travel in 15 minutes? 3. A rock is dropped from a bridge; it hits the water in 9.5 seconds. What is the hieght if the bridge form water and what velocity is the rock traveling at impact ? 2. A bike is moving at a constant velocity of 25 ft/sec, how long will it take to travel 120 miles ? How far will this bike travel in 15 minutes? 3. A rock is dropped from a bridge; it hits the water in 9.5 seconds. What is the hieght if the bridge form water and what velocity is the rock traveling at impact ?Explanation / Answer
1. displacment = sqrt (12^2 +5^2) = 13 miles
distance = 12 +5 = 17 miles
2. t = s/v
120 *5280 / 25 = 25344 sec = 7.04 hours
distance in 15 min = 15 *60 *25 = 22500 feet = 4.26136 miles
3. s = 1/2 gt^2
= 0.5 * 9.8 * 9.5^2 = 442.225 metres = 1450.869 feets
v= gt
= 9.8 * 9.5 = 93.1m/s = 305.368 feet/s
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