PLEASE ANSWER ALL QUESTIONS AND PARTS!! 1. Only two horizontal forces act on a 3.0 kg...

PLEASE ANSWER ALL QUESTIONS AND PARTS!!

1. Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, and the other is 7.2 N, acting 61° north of west. What is the magnitude of the body's acceleration?

2. The 1 kg standard body has an acceleration of 2.00 m/s² at 31° to the positive direction of the x axis.

(a) What are the x and y components of the net force on it?

(b) What is the net force in unit-vector notation?

3. While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) - (4 m/s) . One of the forces is F₁ = (4 N) + (- 6 N) . What is the other force?

4. A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 3.50t² - 2.50t³, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the particle at t = 3.40 s?

5. A rotating fan completes 1200 revolutions every minute. Consider a point on the tip of a blade, at a radius of 0.17 m.

(a)What is the speed of the point?

(b)What is the magnitude of its acceleration?

Expert Solution

genius_generous answered 2 years ago

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