Homework Help: Physics

Posted by Abraham on Saturday, October 6, 2012 at 6:23pm.

A force
F =

(5i − 4j)

N
acts on a particle that undergoes a displacement
Δr = (5i+j)m .
(a) Find the work done by the force on the particle.

(b) What is the angle between F and Δr?

No one has answered this question yet.

Answer this Question

Related Questions

cal - The force on an object is F=−20j. For the vector v=−5i...
Physics - Help a constant force equal to (5i+2j)N moves a particle through a ...
algebra - Solve problem. Telephoto lens. find the image distance i for an object...
physics - A particle moving in the xy plane under goes displacement s=(2i+3j)m ...
physics - A 14 N force with a fixed orientation does work on a particle as the ...
physics 911 - A force ~F = Fx ˆı+Fy ˆ| acts on a particle ...
Algebra II-please check - Write the polynomial in simplest form with roots 4, 5i...
physics - a 2.0 kg particle is given a displacement (delta)r= 2.0i+3.0j (m). ...
Physics - A 10kg particle undergoes simple harmonic motion with an amplitude of ...
algebra 2 - are these answers right? 1. ã-121 = iã11 2...

For Further Reading

First Name:
School Subject:
Answer: