Sunday

March 29, 2015

March 29, 2015

Posted by **suraj suwal** on Wednesday, September 14, 2011 at 12:37am.

speed of 10 m/s from a height of 49 m above

the ground. At the same instant, a second

object is propelled vertically up from ground

level with a speed of 29 m/s .

At what height above the ground will the

two objects pass each other? The acceleration

of gravity is 9.8 m/s

2

.

Answer in units of m

- UTA -
**drwls**, Wednesday, September 14, 2011 at 5:06amFirst solve for the time when they are at the same height.

49 - 10 t - 4.9 t^2 = 29 t - 4.9 t^2

The t^2 terms cancel.

39t = 49

t = 1.2564 seconds

Then, use the height vs. time equation for either object for the vertical height at that time.

Y = 29t - 4.9 t^2 = 28.7 meters

**Answer this Question**

**Related Questions**

physics - An object is thrown downward with an initial speed of 5 m/s from a ...

physics - A first object is thrown vertically upward with some initial speed and...

Physics - A rock is thrown downward from an unknown height above the ground with...

Math - An object is propelled vertically upward from the top of a 144-foot ...

physics - An object is thrown straight up. At the same instant that the object ...

Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...

Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...

Physics - A rock is dropped from a height of 100 meters above the ground. One ...

Physics - A rock is dropped from a height of 100 meters above the ground. One ...

Physics - One object is thrown straight up at 54.9 m/s from the ground at the ...