Thursday
July 31, 2014

Homework Help: math

Posted by jojo on Monday, April 30, 2007 at 9:21am.

Which three options are true about motion in a straight line.

A. A particle which moves at an increasing velocity has a constant acceleration.

B. If two particles always have the same velocity as each other, their separation does not change.

C. A particle which has zero acceleration moves with constant velocity or is stationary.

D. A particle with negative position must have had a negative acceleration in the past.

E. The acceleration of any subject is 9.8m s^-2

F. A particle which moves with a constant acceleration also has a constant velocity.

G. An object which is dropped and falls only under gravity accelerates downwards at approximately 9.8m s^-2

H. Velocity is the magnitude of the speed.

I think A, B and G. Can anyone help?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

maths - Which three options are true about motion in a straight line. A. A ...
math - Which three options are true about motion in a straight line. A. A ...
Chels - What can you say about the motion of a body if its veloctiy-time graph ...
math(mechanics) - the acceleration of a particle as it moves along a straight ...
Physics true false - true false The speed of a particle is always positive. True...
physics - Two particles A and B are in uniform circular motion about a common ...
Physics 1 - The drawing shows three particles far away from any other objects ...
dynamic - A particle moves along a straight line with an acceleration of m/s2, ...
calculus - A particle moves in a straight line with velocity given by v(t) =sin ...
Physics check - 1)What can you say about the motion of a body if: a. its ...

Search
Members