Determine how long does it take her to cross the river

Reference no: EM13525024

Sheena can row a boat at 3.01 mi/h in still water. She needs to cross a river that is 1.26 mi wide with a current flowing at 1.43 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head 60.0° upstream.

(a) What is her speed with respect to the starting point on the bank?

__________mi/h

(b) How long does it take her to cross the river?

________ min

magnitude ______ mi

direction __________

(d) In order to go straight across, what angle upstream should she have headed?

____________ °

Reference no: EM13525024

Questions Cloud

What is the unit product cost for job 413 : What is the total manufacturing cost assigned to Job 413 and what is the unit product cost for Job 413?

What is the change in internal energy of the helium : A large research balloon containing of helium gas at 1.00 and a temperature of 15.0 rises rapidly from ground level to an altitude at which the atmospheric pressure is only 0.900, What is the change in internal energy of the helium

Explain what would be expected freezing point of a solution : What would be expected Freezing Point of a solution of a 4.75 molality(m) solution of a general salt, MX, with an "ion-factor" of 1.75 at that concentration

Companys income statement for the current year : How much of the $3 million assembly costs should appear on the company's income statement for the current year?

Determine how long does it take her to cross the river : Sheena can row a boat at 3.01 mi/h in still water. She needs to cross a river that is 1.26 mi wide with a current flowing at 1.43 mi/h. How long does it take her to cross the river

Determine how long before it hits the ground : A suspension bridge is 62.0 m above the level base of a gorge. A stone is thrown or dropped from the bridge. If you throw the stone straight down with a speed of 25.0 m/s, how long before it hits the ground

Prepare a sales budget for 2009 under each plan : Each unit produced will cost $1.80 in direct labor, $1.25 in direct materials, and $1.20 in variable overhead. The fixed overhead for 2009 should be $1,895,000 - How do I prepare a sales budget for 2009 under each plan?

Explain the activity of a radioactive element : The activity of a radioactive element, El, decreased by 2.0 % over one year. What is the half-life of this element in years

Compute the after tax cash from the contract : Compute the after tax cash from the contract assuming that Company G is the party to the contract and provides the services to the client?

User Account

All Pages