Friday

November 28, 2014

November 28, 2014

Posted by **promice** on Sunday, February 3, 2013 at 1:05pm.

- science -
**Henry**, Tuesday, February 5, 2013 at 7:04pmV = Vo + g*t.

Tr = (V-Vo)/g = (0-9)/-9.8 = 0.918 s.

Tf1 = Tr = 0.918 s. = Fall time from hmax to edge of cliff.

h = Vo*t + 0.5g*t^2 = 100m.

9*t + 4.9t^2 = 100

4.9t^2 + 9t - 100 = 0.

Use Quad. Formula.

Tf2 = 3.69 s. = Fall time from edge of cliff to Gnd.

T = Tr + Tf1 + Tf2.

T = 0.918 + 0.918 + 3.69 = 5.53 = Total

time in flight.

**Answer this Question**

**Related Questions**

Math - A stone is thrown vertically upwards from a platform 60meters above the ...

Physics - Help imediately please very urgent! A stone is dropped from a cliff ...

mechanics - a stone is dropped from a cliff 200m high.if a second stone is ...

civil engineering - A stone (on the edge of the roof) thrown from the top of a ...

physics - A stone is thrown upwards from the edge of a 5.3 m high cliff. It ...

Physics - A stone is thrown horizontally from the top of a 25.00 m cliff. The ...

physics - A stone with mass m = 2.3 kg is thrown vertically upward into the air ...

phyiscs - A stone is thrown horizontaly from the top of a 25.00-m cliff. The ...

science - Two stones are thrown vertically upward from the ground, one with ...

chemistry - a stone is thrown vertically upwards from the edge of a tower with ...