NEED HELP QUICK (regarding weight and acceleration)

  • #1

Homework Statement


Answer True, False, or Cannot tell to each of the five statements below.
E.g., if the answer to the first statement is `true' and to the rest, `cannot tell', enter TCCCC.

A)You pour 100 g of salt onto a spring scale in an elevator accelerating upward. The scale reads a value greater than 100 g.

B)A 2 kg and a 3 kg ball are dropped from a tower. The net forces on each are the same.

C)Mass and weight describe the same thing, although in different units.

D)You are standing on a jet-powered platform that can move straight up or down. Your apparent weight is greater than your true weight if the platform is descending and speeding up.

E)An astronaut stands on a bathroom scale on the surface of Jupiter; the scale does not read his true weight.


Homework Equations





The Attempt at a Solution


I have tried attempted many solutions (13 out of 15 tries used up). I am fairly sure that B), C), and D) are false. Quick help would be appreciated, time is running short.
 

Answers and Replies

  • #2
Doc Al
Mentor
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1,286
What about the ones you're not sure about? What's your reasoning on those?
 

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