Homework Help: college physics

Posted by toor on Wednesday, October 3, 2012 at 12:11am.

a toy cannon fires a projectile from ground level with a speed of 15.0 m/s, at an angle of 30.0 degrees above the horizontal.

a) calculate the horizontal range of projectile.

R=Vi^2/g * sin 2theta
= (150/9.8)*(sin(2*30.0)
= 19.88m
I know this part is right but i'm not sure what to do next?

b) calculate the maximum height for the trajectory.

c) calculate the components of the projectile's impact velocity.

college physics - Elena, Wednesday, October 3, 2012 at 3:02pm
R=vₒ²•sin2α/g,

h= vₒ²•sin²α/2g,

t= 2vₒ•sinα/g

v(x) =v₀(x)= v₀•cos α
v(y) =-v₀(y) = - v₀•sin α

Answer this Question

Related Questions

physics...plz help me - A cannon is pointed at a 60 degree angle relative to a ...
Physics - A cannon fires a projectile into the air at an angle of 60degrees ...
physics - A cannon fires a shell at an angle of 55.0° above the horizontal...
Physics - A cannon fires a shell at an angle of 55.0 above the horizontal. The ...
Physics - A projectile is fired from ground level with a speed of 40 m/s at an ...
Science - For a toy cannon that fires out masses, how will the velocity of a ...
Dynamics - Fundamental Problem 15.12 The cannon and support without a projectile...
Physics - A cannon on a railroad car is facing in a direction parallel to the ...
Physics - A cannon is mounted on a railway flatcar, the muzzle elevated to 31.4&...
physics - Suppose a fixed cannon is to fire a projectile at an enemy tank, which...

For Further Reading

First Name:
School Subject:
Answer: