-PHYS1114 Lecture FALL 2018 PHYS1114 Lecture F I g steve, Mc My Home Course Home

Question

-PHYS1114 Lecture FALL 2018 PHYS1114 Lecture F I g steve, Mc My Home Course Home Content Discussions Dropbox Quizzes Classlist Grades My Library Edit Course PCQ 13 st. Length: 2:00:00 Stevee McMillin: Attempt 1 Question 1 (1U ponts) of 2 Which one of the following statements is true? ge 1: O Work done depends on: Magnitude of the force and the magnitude of the displacement O Work done depends on: Only the Magnitude of the force O Work done depends on: Only the Magnitude of the displacement 2 end aved ResponseWork saved Response o Item Work done depends on: Magnitude of the force, the magnitude of the displacement and the angle between the force and the displacement Save Question 2 (10 points) Which one has larger kinetic energy: a 500-kg object moving at 40 m/s or a 1000-kg object moving at 20 m/s? The 500-kg object iz Started

Explanation / Answer

Workdone is given as

W= Fd cos x

Here workdone depends on force, displacement and angle

So, option (d) is correct

=====

E1= 0.5*500* 40^2= 400000 J

E2= 0.5*1000* 20^2= 200000 J

Mass (500kg ) has more KE

======

Commemt in case any doubt.. good luck

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.