Posted by **Fifi** on Wednesday, April 10, 2013 at 12:44pm.

Venus is a grade 12 learner and she claims that she can shoot a stone 50m vertically high by using a catapult.She wants to know the relationship between the height reached by the stone and the initial velocity of it.

- physics -
**Steve**, Wednesday, April 10, 2013 at 1:02pm
Assuming the stone is to be hurled vertically with velocity v,

h(t) = vt - 4.9t^2

h will reach maximum height at t=v/9.8 seconds. So, the max height H is

H(v) = v(v/9.8) - 9.8/2 * (v/9.8)^2

= v^2/9.8 - (v^2/9.8)/2

= v^2/19.6

## Answer This Question

## Related Questions

- M.H.S - Marry claims that she can shoot a stone 50m vertically high using ...
- physics - A stone with mass m = 2.3 kg is thrown vertically upward into the air ...
- Physics - A stone A is dropped from the top of a very high platform. At the same...
- Physics - From the edge of the rooftop of a building, a boy throws a stone at an...
- physics - From the edge of the rooftop of a building, a boy throws a stone at an...
- civil engineering - A stone (on the edge of the roof) thrown from the top of a ...
- Dynamics - A stone is thrown vertically upward from the top of a 30m high ...
- Dynamics - A stone is thrown vertically upward from the top of a 30m high ...
- physics - a stone is from the top of a tower 300m high and at the same time ...
- physics - a stone is from the top of a tower 300m high and at the same time ...

More Related Questions