Question

5.A Ship Is Moving Due North Across A River Runningtowards West. At The End Of One Hour It Is Foundthat The Ship Has Made 813 Km In A Direction 30°West Of North. Find The Speed Of The Ship.(1) 10 Km/Hr(2) 12 Km/Hr(3) 14 Km/Hr(4) 16 Km/Hr​

Answer 1

Answer:

12 km/Hr

Step-by-step explanation:

A Ship Is Moving Due North Across A River Running towards West. At The End Of One Hour It Is Foundthat The Ship Has Made 8√3 Km In A Direction 30°West Of North. Find The Speed Of The Ship.(1) 10 Km/Hr(2) 12 Km/Hr(3) 14 Km/Hr(4) 16 Km/Hr​

Distance Travelled  8√3 Km In A Direction 30°West Of North.

Distance in North = 8√3 * Cos30 = 12 km

Time = 1 hr

Speed of Ship = 12/1  = 12 km/Hr

Distance in West =  8√3 * SIn30 = 4√3 km

Speed of River =  4√3 km/Hr