as mass increases, does speed increase?

Question

this is for class, so no silly answers please.

Answer 1

it depends what the speed of the object is from. is it free falling? is it moving at a constant linear speed? or is it even angular speed? if it is falling, theoretically, as mass increase, the acceleration would keep increasing at a faster rate due to a greater downward force. however, because of earthly things such as air molecules and wind and air resistance, it would apply an equal but opposite force back up on the object, causing it to move at a constant speed of about 9.8m/s, same as any other object. so in short, mass generally/USUALLY does not increase speed. of course, there are always exceptions =P

Answer 2

If kinetic energy is constant, yes.

KE = 1/2 m v ^2

If KE = c, m and v have an inverse relationship; i.e. in order to increase speed you must reduce mass, and if you want to increase mass, you must reduce speed.

Answer 3

You haven't given enough information. In general, no.
If you mean does making things heavier make them fall faster, the answer is that if you neglect wind resistance- no. With wind resistance, yes. For two bodies with the same kinetic energy, the heavier body moves more slowly- the lighter one goes faster.

More information about your question will allow less silly :) answers!

Answer 4

its the other way around,more speed=more mass

energy and mass are=[it would tack to long to explain]
so when you move,you gane kinetic ENERGY,and gaining energy means gaining mass

to your first ?:if a object has more mass, the more force is needed move it meaning less speed

[not sher]