10th grade
posted by elana .
A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy boat is launched with a velocity of 2.0 meters per second eastward from the west bank of the stream
a. what is the magnitude of the boat's resultant velocity as it crosses the stream?
b. how much time is required for the boat to reach the opposite bank of the stream?

what is sqrt(1.5^2+2.0^2) ?
timeacross=30/speed across = 30/2.0 sec 
86
Respond to this Question
Similar Questions

Algebra~Scary problem!
A launched rocket has an altitude, in meters, given by the polynomial h+vt4.9t^2, where h is the height, in meters, from which the launch occurs, at the velocity v in meters per second, and the t is the number of seconds for which … 
Earth Science
1A student measures the velocity of the water in a stream as 2.5 meters per second. The actual velocity of the water is 3.0 meters per second. What is the approximate percent deviation of the studentâ€™s measurements? 
physics
A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy boat is launched with a velocity of 2.0 meters per second eastward from the west bank of the stream a. what is the magnitude of the boat's … 
mathalgebra
A launched rocket has an altitude, in meters, given by the polynomial h = vt 4.9t^2, where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the … 
math 117
A launched rocket has an altitude in meters, given by the polynomial h+vt4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the … 
math 116
A launched rocket has an altitude in meters, given by the polynomial h+vt4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the … 
Algbrah
A launched rocket has an altitude in meters, given by the polynomial h+vt4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the … 
math 117
A launched rocket has an altitude in meters, given by the polynomial h+vt4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the … 
math 117
A launched rocket has an altitude in meters, given by the polynomial h+vt4.9^2, h is the height in meters v is the velocity in meters per second and t is the number of seconds for which it takes the rocket to become airborne. If the … 
math
a launched rocket has an altitude, in meters, given by the polynimial h+vt4.9t^2 where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket …