is any body interested in answering my question in science and maths->physics (sahil)?

Question

sahil

Answer 1

Sahil: I did answer your physics question on projectile motion. You said you still don't know which formula to use when.

Let's see if this helps ...

1. If it involves vertical motion only, use

s(t) = (1/2)gt^2 + vo t + so

where g = -9.8 m/s/s, vo is initial velocity (positive upward, negative downward), and so is initial displacement.

2. In these problems, there be a vertical component; otherwise the projectile won't go through the air. Some problems also have a horizontal component. When that happens, you must split the problem in two parts -- vertical and horizontal -- using trig (sines and cosines) on the initial velocity.

3. For the horizontal component , use

sx(t) = vox t + sox

where vox and sox are the horizontal and vertical components of the initial velocity and displacement respectively, and sx is the horizontal displacement as a function of time.

4. When you have both vertical and horizontal motion simultaneously, you usually want to solve the vertical portion first. That gives you the time (t) in flight, and you often need that value for use in the horizontal part of the problem.

Hope this helps you understand which formulas you need to use.

Answer 2

I will look now sahil..I will help if I can

K x

Answer 3

Is this the question?

Answer 4

no