asked 215k views
3 votes
A student is carrying a heavy backpack that weighs 252 N, and walks a distance of 365 m horizontally to his house. How much work has the student done?

1 Answer

2 votes

Final answer:

The work done by a student carrying a heavy backpack weighing 252 N over a distance of 365 m horizontally is 91980 Joules.

Step-by-step explanation:

When a student walks a distance of 365 m with a heavy backpack that weighs 252 N, the amount of work done is calculated using the formula Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.

Since the student applies the force in the same direction as they are moving (horizontally), the angle is 0 degrees, and cos(0) is 1. Therefore, the work done is simply the product of the force (weight of the backpack) and the distance.

The calculation for the given situation is 252 N (force) × 365 m (distance) × cos(0°), which yields Work = 252 N × 365 m = 91980 Joules. This means the student does 91980 Joules of work by carrying the backpack to their house.

answered
User Gitbox
by
8.1k points

No related questions found

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.