Wednesday

November 26, 2014

November 26, 2014

Posted by **Tammy** on Tuesday, September 25, 2007 at 7:46pm.

a) determine the time necessary fot the projectile to reach the ground below

b) determine the horizontal distance from the base of teh building that the projectile lands

c) determine the horizontal and vertical components of the velocity just before the projectile hits the ground

d) determine the magnitude of the total velocity just before the projectile hits the ground.

a)would I use y=y_0 +v_0t +1/2 at^2

100=0+30t+1/2(10)t^2 and solve for t?

b) would i use x=x_0+v_xt

c)for the horizontal componet i believe i use v=v_0 +at and for the vertical: x=x_0+vt

d) v_total =sqrt(vx^2 +vy^2)

Are these equations I came up with correct to solve this problem?

- Physics -
**massia**, Saturday, February 9, 2013 at 9:39amCalculate how far a boy standing on a 5m high wall will be able to shoot a stone with a projecting device if the stone is projected upwards 45 and it has an initial velocity of 20m/s

**Answer this Question**

**Related Questions**

Physics - A projectile is shot horizontally at 30m/s from the roof of a building...

Physics - A projectile is shot horizontally at 30m/s from the roof of a building...

Physics - A projectile is fired from ground level with a speed of 40 m/s at an ...

Physics - An objectis thrown upward from the edge of a tall building with a ...

Physics - A target lies flat on the ground 3m from the side of a building which ...

physics - A large building has an inclined roof. The length of the roof is 69.5 ...

Physics - A projectile is shot from the edge of a cliff h = 225 m above ground ...

Physics - A ball thrown horizontally at 18.3 m/s from the roof of a building ...

physics - At a time t after being projected from the ground, a projectile is ...

Science - Physics - When a projectile is fired horizontally, which of the ...