# Physics

posted by .

A seed shoots out from the pod with the speed of 2.4 m/s but with a direction of motion 30° below the horizontal. The seed pod is initially 1.2 m above the ground.
(a) How long does it take for the seed to land? (Neglect air resistance.)
(b) What horizontal distance does it cover during its flight?

• Physics -

vertical speed initially: 2.4*sin30

time to ground:
h=vi*t+1/2 g t^2
1.2=2.4*sin30*t+4.9t^2
put this in quadratic form, and solve for t using the quadratic equation.

horizonal distance= 2.4cos30*t

## Similar Questions

1. ### Physics

When the dried-up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.64 m/s at an angle of 30.0˚ below the horizontal. The seed pod is 0.465 m above the ground. How long does it take …
2. ### Physics

When the dried up seed pod of a scotch broom plant bursts open, it shoots out a seed with an initial velocity of 2.2 m/s at an angle of 60.0° above the horizontal. If the seed pod is 0.8 m above the ground, how long does it take for …
3. ### physics

A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 56° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically …
4. ### physics

A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 61° above the horizontal. The end of the ramp is 1.4 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically …
5. ### Physics

A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 56° above the horizontal. The end of the ramp is 1.1 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically …
6. ### Genetics

Consider the following cross involving the genes for pod color and seed shape: P generation: Green pods with round seeds= ____ Yellow pods with wrinkled seeds=____ F1 generation: 1/4 green pods with round seeds= ____ 1/4 grens pods …
7. ### AP Biology

The one-pod condition (P) is dominant to the three pod condition (p). Normal leaf (L) is dominant to wrinkled leaf(l). Determine the genotypes for the two parents for all possible matings producing the following: 150 one pod normal, …
8. ### physics

A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 54° above the horizontal. The end of the ramp is 1.4 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically …
9. ### Biology

Different types of plants may be angiosperms, vascular seed, vascular non-seed, or non-vascularplants 1) Short grass meadow----I def. know it's not an angiosperm but can it be vascular non-seed 2) Magwort---im debating if it's non-vascular …
10. ### math

A city plans to plant grass seed in a public playground that has the shape of a triangle with a height of H = 50 m and a base of B = 24 m. Each bag of grass seed will seed 120 m2. How many bags of seed should be purchased?

More Similar Questions