Thursday

November 27, 2014

November 27, 2014

Posted by **Sarah** on Thursday, August 31, 2006 at 11:15am.

a) How far apart are the two masses after 0.5 s?

b) Will the massses ever meet or pass each other? And if so will the meeting place take place while both masses are falling or when one is falling and the other is rising?

a) I got 30 - 15t

30-15(.5 seconds)=22.5 meters

b) I need help on this part of the queston.

Did I do part a correctly?

distance apart= 30- 1/2 g (t)^2 - 15t + 1/2 g t^2

distance apart= 30 -15t

t= .5 second

If they meet, distance apart is zero

solve for t.

See what the velocity of the ball thrown upwards is at that time. Is it positive (upward) or not.

**Answer this Question**

**Related Questions**

Physics - A mass is dropped from a height of 30m, and at the same time from ...

physics - A mass is dropped from a height of 30m, and at the same time from ...

physics - a mass is thrown vertically upwards with an initial velocity of 30m/s...

physics please help!!!!!! - a mass is thrown vertically upwards with an initial...

Physics - A mass is thrown upwards with an initial velocity of 30m/s. A second ...

PHYSICS - A mass is thrown upwards with an initial velocity of 30m/s. A second ...

physics - A 4.75 mass was dropped from a certain height and achieved a maximum ...

G.c.c.mkd physics - A 5kg mass is dropped from a height of 30m above the ground...

physics - A mass is dropped from a height of 30m, and at the same time from ...

physics - A mass of 5.25-kg was dropped from a height of 31 m. How much time ...