Wednesday
April 1, 2015

Homework Help: Physics

Posted by Sam on Friday, September 26, 2008 at 8:59pm.

a) A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 100 m above ground level, and the ball is fired with initial horizontal speed v_0. Assume acceleration due to gravity to be g = 9.80 m/s^2. Assume that the cannon is fired at time t = 0 and that the cannonball hits the ground at time tg. What is the y position of the cannonball at the time tg/2?

I got 75m and I know that one is right.

I need help with part b
Given that the projectile lands at a distance = 110 from the cliff, as shown in the figure, find the initial speed of the projectile, .

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - a cannonball is fired horizontally from the top of a cliff. the cannon...
physics - A cannonball is fired horizontally from the top of a cliff. The ...
Physics - Someone posted the question below, stating that they knew the answer ...
physics - King Arthur's knights fire a cannon from the top of the castle wall. ...
physics - King Arthur's knights fire a cannon from the top of the castle wall. ...
physics - 10. A cannon elevated at an angle of 35 to the horizontal fires a ...
physics. - A 20.0 kg cannon ball is fired from a cannnon with muzzle speed of ...
physic - A cannon ball is fired at an angle of 30 above horizontal with an ...
Physics - A cannon placed at the top of a 100.0 m high cliff fires horizontally ...
physics - A projectile is fired at an angle of 30ᵒ above the horizontal ...

Members