🤓 Based on our data, we think this question is relevant for Professor Narayanan's class at FIU.
The 30 N force makes an angle θ = 30° relative to the direction of motion.
Learning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacement
If an object undergoes displacement while being acted upon by a force (or several forces), it is said that work is being done on the object. If the object is moving in a straight line and the displacement and the force are known, the work done by the force can be calculated as
W= F*s=/F/ /s/ cosθ
where W is the work done by force F on the object that undergoes displacement s directed at angle θ relative to F.
Note that depending on the value of cosθ, the work done can be positive, negative, or zero.
In this problem, you will practice calculating work done on an object moving in a straight line. The first series of questions is related to the accompanying figure. (Intro 1 figure)
Find the work W done by the 30-newton force.
Use two significant figures in your answer. Express your answer in joules.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Intro to Calculating Work concept. You can view video lessons to learn Intro to Calculating Work. Or if you need more Intro to Calculating Work practice, you can also practice Intro to Calculating Work practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Narayanan's class at FIU.