Quia Science Chapter My Course8- Blackboar Take Test: Week 5 \"Forc... Chegg Stu

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Quia Science Chapter My Course8- Blackboar Take Test: Week 5 "Forc... Chegg Study Guided S Physics Chapter 7 Fla Krakwufp whose mass i Question Completion Status: Find the acceleration of the box. Choose right as positive direction as shown in the figure. Round your answer to two decimals. QUESTION 9 2 points Save Answer Two forces are exerted on a 23 kg box Fi-23 N and F2-37 N as shown in figure below. Find the acceleration of the box. Choose right as positive direction as shown in the figure. Round your answer to two decimals. QUESTION 10 2 points Save Answer Two forces are exerted on a 10 kg box: F1 30 N and F2 40 N as shown in figure below. Choose right as positive direction. Click Save and Submit to save and submit. Cick Save All Answers to save ail ansuwers. Save All Answers Close Window Save and Submit

Explanation / Answer

Using Newton's second law:

Fnet = m*a

a = Fnet/m

Net force on box in +x-direction is

Fnet = F1 - F2

Fnet = 23 - 37 = -14 N

m = mass of box = 23 kg

So

acceleration = a = Fnet/m = -14/23

acceleration = -0.61 m/sec^2

(-ve sign means direction of acceleration is towards negative x-axis)

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