21_Numbers_Sneha

What is the resulting net force?

• 14.422 newtons north

• 20 newtons north

• 4 newtons south

• 4 newtons north

• 20 newtons south

John and Danny, own a strong and stubborn puppy named Dexter. It is so hard to take Dexter for a walk that they devise a scheme to use 2 leashes. If John and Danny pull with forces of 23 lbs and 27 lbs at the angles shown, how hard is Dexter pulling if the puppy holds the children at a standstill?

• 50 lbs

• 47.954 lbs

• 48.073 lbs

• 48.461 lbs

What is the magnitude of the resulting force ?

• 18.727 Newtons

• 20 Newtons

• 4 Newtons

• 8.082 Newtons

What is the magnitude of the resulting force?

• 18.343 Newtons

• 8.918 Newtons

• 20 Newtons

• 4 Newtons

Which diagram shows the correct resulting force?

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• 
• 
• 

Find the magnitude of the resultant. Round to the nearest whole number.

• 6

• 7

• 40

The speed of a powerboat in still water is 47 knots per hour (KPH). The powerboat heads directly west across the Messina River. The river flows north at 3.5 KPH. Find the resulting speed of the powerboat.

• 43.5

• 47

• 47.1

• 50.5

The speed of a powerboat in still water is 47 knots per hour (KPH). The powerboat heads directly west across the Messina River. The river flows north at 3.5 KPH. Find the resulting direction of the powerboat from east.

A Lear Jet has a speed of 420 mph in still air. Suppose the plane travels east and encounters a 50 mph wind blowing due North. Find the resulting speed of the jet.

• 423 mph

• 470 mph

• 370 mph

• 415 mph

A Lear Jet has a speed of 420 mph in still air. Suppose the plane travels east and encounters a 50 mph wind blowing due North. Find the resulting direction of the jet.