My force doesn't oppose the acceleration of the body. It just gives acceleration against the instantaneous motion of the body.
Since everything is hypothetical, you can just assume that somehow the ball was just tossed into the air. If you feel the tossing of the ball in the air is absurd...
I was thinking of a problem on my own when I came upon an entirely new idea.
Assume that a force(call it air resistance) acts on a body such that it opposes the motion of the body by an acceleration a. If the body is at rest, it doesn't act. I know that it is not possible but just assume such a...
A and B are two objects in a plane. Initially they were at a distance d apart. B moves rectilinearly and perpendicular to the line AB initially with speed v and A moves with speed v so that it is continually aimed towards B. After some time, both of them are moving aimed in the same direction...
Homework Statement
The side of a cube is 12.04 cm. Write it's surface area rounded off to the appropriate significant figures.
Homework Equations
Surface area=6 x side^2
For multiplying, the answer should be written with the number of significant figures equal to the least number of...