Saturday
December 20, 2014

Homework Help: Physics

Posted by Donnie on Sunday, March 9, 2014 at 9:00pm.

(a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is v= -(3.2m/s)i+(4.5m/s)k. What is the instantaneous rate at which the force does work on the object? (b) At some other time, the velocity consists of only a y component. If the force is unchanged, and the instantaneous power is -6.0 W, what is the velocity of the object just then? (Give your answer without a unit vector.)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - (a) At a certain instant, a particle-like object is acted on by a ...
Physics - At a certain instant, a particle-like object is acted on by a force F...
physics - (a)At a certain instant, a particle-like object is acted on by a force...
Physics/Math - At a certain instant, a particle-like object is acted on by a ...
physics - At a certain instant, a particle-like object is acted on by a force F...
Physics please help????? - (a) At a certain instant, a particle-like object is ...
Physics - When is the average velocity of an object equal to the instantaneous ...
Physics - A 5.57-kg object passes through the origin at time t = 0 such that its...
Calculus - The height of a particle is given by the equation f(t)=t^2+2t+6 (a) ...
science - When is the average velocity of an object equal to the instantaneous ...

Search
Members