Monday

September 22, 2014

September 22, 2014

Posted by **asem** on Friday, March 16, 2012 at 7:25am.

- physical -
**asem**, Friday, March 16, 2012 at 7:49amV 0x = 30*cos 50 = 19.28 m/s

V 0y = 30*sine 50 = 22.98

Y = 14-1.5 =12.5

Y = V 0y*t -0.5*g*t^2

12.5 = 22.98*t -4.9*t^2

Solve the quadratic equation for t. t = 4.06 seconds

X = v 0x*t

X = 19.28*4.06 = 78.27 meters

- physical -
**asem**, Friday, March 16, 2012 at 7:50amThe ball travels in the vertical direction with initial vertical component of 30 sin 50 [22.98 m/s^2] upward till its velocity component in vertical direction becomes let us say V. The final vertical component after travelling [14 - 1.5] = 12.5 m is given by

[30 sin 50]^2 - V^2 = 2x9.8x12.5 or

V^2 = 528.14 - 245 = 283.14 or V = 16.826 m/s

Time required to reduce the vertical component from 22.98 to 16.82 would be 6.16/9.8 s = 0.628 s

The horizontal distance travelled by the ball in this time is

30 cos 50 x 0.628 = 12.11 m

**Answer this Question**

**Related Questions**

physics - A baseball is hit with a speed of 27.0 at an angle of 48.0. It lands ...

Physics - A baseball is hit with a speed of 29.0{\rm m/s} at an angle of 44.0{\...

PHYSICS - :A baseball is hit with a speed of 30.0 at an angle of 50.0. It lands ...

Physics - A baseball is hit with a speed of 27.0 m/s at an angle of 42.0 deg. It...

physics - A baseball is hit with a speed of 27 meters per second at an angle of...

physics - 1)A fire hose held near the ground shoots water at a speed of6.5 mps ...

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

physics, please help me, this question is hard - John Stands at the edge of a ...

physics - If I am standing on top of a building that is 350 ft. high and I throw...

Physics - A ball is thrown horizontally from the roof of a building 55 m tall ...