Newtons 2nd Law just need to get started

In summary, the problem is to determine the strength of a rope needed for a car to tow a 2,270kg truck without breaking it while accelerating the truck from rest to 3.00 m/s in 12.0 seconds. The time is used to find the acceleration, which is needed to calculate the tension in the rope using the equation F=ma. The initial and final velocities are given in the problem.
  • #1
toddler
17
0
Problem : A car is to tow a 2,270kg truck with a rope. How strong should the rope be so that it will not break when accelerating the truck from rest to 3.00 m/s in 12.0 seconds?


So I assume it wants me to find the tension?...but the 12 seconds is throwing me off...I'm not sure what that has to do with anything if sum of the forces = ma (F=ma)...so where does the time come into play...?
 
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  • #2
You can use the time to find the acceleration. You have the initial and final velocity there if you noticed.
 
  • #3
ahh silly me...i was fooled by the word 'accelerating' and thought the acceleration was 3.00 m/s...i should have noticed it wasn't even in the right units to be acceleration...ok, i have the initial velocity and final...thanks for the jump start i needed
 

What is Newton's 2nd Law?

Newton's 2nd Law of Motion states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. In simpler terms, the greater the force applied to an object, the greater its acceleration will be. Similarly, the more massive an object is, the less it will accelerate under the same force.

What is the equation for Newton's 2nd Law?

The equation for Newton's 2nd Law is F=ma, where F represents the net force acting on an object, m represents the mass of the object, and a represents the resulting acceleration.

What is the difference between mass and weight?

Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity acting on an object. Mass is measured in kilograms (kg) and remains constant regardless of an object's location, while weight is measured in newtons (N) and can vary depending on an object's location in the universe.

How does Newton's 2nd Law apply to everyday life?

Newton's 2nd Law can be observed in many everyday situations, such as pushing a shopping cart, throwing a ball, or riding a bike. In each of these scenarios, the object's acceleration is directly related to the amount of force applied to it and its mass.

Can Newton's 2nd Law be used to calculate the motion of objects in real-world situations?

Yes, Newton's 2nd Law can be used to predict the motion of objects in real-world situations, as long as all the forces acting on the object are known. This law is essential in fields such as engineering, physics, and astronomy, where understanding and predicting the motion of objects is crucial.

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