Sunday

March 1, 2015

March 1, 2015

Posted by **Jaisa** on Wednesday, March 11, 2009 at 1:53am.

- Science -
**drwls**, Wednesday, March 11, 2009 at 11:08amYou are given enough information to solve for the takeoff velocity, "hang time" and "launch angle", but I could find no real solution for the hang time, using your inputs.

- Science -
**drwls**, Wednesday, March 11, 2009 at 1:16pmHer mass is M = Weight/g = 51.0 kg

Her initial velocity, from her initial kinetic energy E (equal to work done), is

Vo = sqrt(2 E/M) = 3.13 m/s

The horizontal distance X that she travels is related to her "takeoff angle" A by the equation

X = 2.5 = (Vo^2/g)*sin(2A)

which leads to

2.5 = 1.00 sin (2A)

There is no angle 2A (or A) that satifies this equation. She does not have enough initial kinetic energy to jump that far. You may have copied something wrong

**Answer this Question**

**Related Questions**

Physics - Mason lifts a box off the ground and places it in a car that is 0.50 ...

science - what force must be applied to the end of a 2.0 meter long crowbar in ...

physics - how much work is required to lift a 10 newton weight from 4.0 meters ...

Science - A force of 100 newtons was necessary to lift a rock. A total of 150 ...

Physical Science - How much work is needed to lift an object with a mass of 51....

science - Convert 32 newton-meters to Joules. Please help!

science - if a person puts 500 newtons into pushing an immovable wall that was 2...

physical science - a force used to lift a 12-kilogram mass to a height fo 8 ...

physics - A 650 kg weather balloon is designed to lift a 4600 kg package. What ...

physics - If You did 150 joules of work lifting a 120 newton backpack.A) How ...