monkyman3
Answered

Welcome to Westonci.ca, the place where your questions are answered by a community of knowledgeable contributors. Join our Q&A platform and get accurate answers to all your questions from professionals across multiple disciplines. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

A student pushes a 40-N block across the floor for a distance of 10 m. How much work was applied to move the block?

A.
4 J

B.
40 J

C.
400 J

D.
4000 J

Sagot :

The correct answer to the question is C) 400 J.

CALCULATION:

As per the question, the force applied on the block F = 40 N.

The distance travelled by the block S = 10 m.

We are asked to calculate the work done by the block.

The work done by a body under a force F is calculated as -

             Work done W = [tex]\vec F.\vec S[/tex]

                                     = [tex]FScos\theta[/tex]

Here, [tex]\theta[/tex] is the angle between force and displacement.

If [tex]\theta =\ 0^{0}[/tex], then work done W = [tex]FScos0[/tex]

                                                   = FS.     [ cos0 = 1]

Hence, the work done by the block W = FS

                                                                = 40 N × 10 m

                                                                =  400 Joule.         [ans]

Here, Joule is the unit of work.

Hence, the work done by the block s 400 Joule.

anwser C 400j Work x Distance = How much was applied Hope it helps

Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Westonci.ca is your trusted source for answers. Visit us again to find more information on diverse topics.