Question 1. Calculate the magnitude of a force whose y-component is 140 N and is

Question

Question 1.

Calculate the magnitude of a force whose y-component is 140 N and is directed at an angle of 18 deg right of the y-axis. Give the answer to 1 decimal place.

Your Answer:Question 1 options:

Question 2

Calculate the mass of an object in which a 110 N force causes the object to accelerate at 16 m/s2. Give the answer to 1 decimal place.

Your Answer:Question 2 options:

Question 3

Calculate the force required to accelerate a 200 kg object from rest to 28 m/s over a distance of 36 meters. Give the answer to 1 decimal place.

Your Answer:Question 3 options:

Question 4

Calculate the magnitude of the resultant force given that F1 = 45 N at an angle of 85 degrees, and F2= 40 N at an angle of 30 degrees. The angles are measured from the positive x-axis. Give the answer to 1 decimal place.

Your Answer:Question 4 options:

Explanation / Answer

1.

Fy=Fsin18=140

F=140/sin18=453.05 N=453.1 N

2.

m=F/a =110/16

m=6.875 Kg=6.9 kg

3.

From

V2=Vo2+2ad

282=0+2*a*36

a=10.89 m/s2

Force

F=ma =200*10.89

F=2177.8 N

4.

X-Component

Fx=45Cos85+40Cos30 =38.563 N

Y-Component

FY=45sin85+40sin30 =64.83 N

Magnitude

F=sqrt(38.5632+64.832)

F=75.4 N

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