# math

a boy travels in a boat at an angle of 20 degrees to the river bank.if he travels 200m before reaching the opposite bank,calculate the width of the river

1. 👍 0
2. 👎 0
3. 👁 113
1. sin 20 = w/200
w = 200 sin 20

1. 👍 0
2. 👎 0
posted by Damon
2. 68.40402867

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

A boy travels in a boat at angle of 30 degrees to the river bank.if he travels 250m before reaching the opposite,calculate the width of the river

asked by Matika on February 21, 2011
2. ### Physics

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to

asked by joshua on October 18, 2009
3. ### Physics

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to

asked by joshua on October 18, 2009
4. ### Physics

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to

asked by joshua on October 19, 2009
5. ### Physics - URGENT

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to

asked by joshua on October 19, 2009
1. ### physics - need help right now.

A boat travels at 3.8 m/s and heads straight across a river 240m wide at an angle of 145'. The river flows at 1.6 m/s. a. What is the boat's resultant speed with respect to the river bank? b. How long does ti take the boat to

asked by joshua on October 18, 2009
2. ### Vectors

A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat's push makes with the bank is 50 degrees. At what angle to the bank should the boat steer if the current is 8 km/h? How

asked by John on February 20, 2017
3. ### Classical mechanics

A boat leaves point P on one side of a river bank and travels with constant velocity V in a direction towars point Q on the other side of the river directly oposite P and distance D from it If r is the instantaneous distance from

asked by JuanPro on February 7, 2014
4. ### Physics

A current of a river flows steadily from west to east at 1.00 m/s. A boat in the river travels at 3.00 m/s relative to the water. The river is 20.0 m wide with parallel banks. The boat leaves the shore at point A, and point B is

asked by . on September 19, 2010
5. ### Calculus

A boat crosses a river and arrives at a point on the opposite bank directly across from its starting position. The boat travels at 4 m/s and the current is 2m/s. If the river is 600 m wide in what direction must the boat steer and

asked by Abbie on May 4, 2010

More Similar Questions