Homework Help: Physics

Posted by mike on Tuesday, October 23, 2012 at 9:36pm.

A 5.57-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.25 m/s and its y component of velocity is -3.15 m/s.
(a) What is the kinetic energy of the object at this time?

(b) At a later time t = 2.00 s, the particle is located at x = 8.50 m and y = 5.00 m. What constant force acted on the object during this time interval?
magnitude

magnitude
Degrees?

(c) What is the speed of the particle at t = 2.00 s?
m/s

A) i got correct which is 104

B) i got 10.5
and 30.5 degrees which its telling me im off by10%

C) i need be corrected i think

No one has answered this question yet.

Answer this Question

Related Questions

Physics - An object moves in the +x direction at a speed of 30 m/s. As it ...
pre-calculas - An object is situated so that its center of mass is located at ...
physics - At the instant the displacement of a 2.00 kg object relative to the ...
physics - A 1.8 kg particle-like object moves in a plane with velocity ...
physics - A dynamics cart carrying a black 10.0 cm strip accelerates uniformly ...
Physics - An 8.00 kg block is placed on a rough horizontal surface and connected...
Physics - A 2.1 kg particle-like object moves in a plane with velocity ...
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...

For Further Reading

First Name:
School Subject:
Answer: