Monday

September 22, 2014

September 22, 2014

Posted by **Sarah** on Thursday, June 4, 2009 at 9:06pm.

- Physics -
**MathMate**, Thursday, June 4, 2009 at 10:00pmSince he shoots horizontally, the drop starts the moment the bullet leaves the rifle, at the rate of g (acceleration due to gravity).

For (a) and (b), calculate the time t the bullet is in the air using the horizontal speed, then calculate drop using

S=ut+at^2/2

where a=-g, and u the muzzle velocity.

- Physics -
**Sarah**, Thursday, June 4, 2009 at 10:38pmwhat is U? and i dont have time so i need to find it and what do i put in for S to find t? sorry im so confused

- Physics -
**MathMate**, Thursday, June 4, 2009 at 10:44pmu is the initial velocity = muzzle velocity.

The formula is to find S, the distance the bullet drops vertically.

- Physics -
**Sarah**, Thursday, June 4, 2009 at 10:55pmso u would = 750 ft/s, but there is no time so how can you solve for S if t is not available

- Physics -
**MathMate**, Thursday, June 4, 2009 at 11:01pmThe time is simply the horizontal distance divided by the muzzle speed, since the rifle is aimed horizontally, so cos0=1.

**Answer this Question**

**Related Questions**

Physics - A markman fires a .22 caliber rifle horizontally at a target the ...

Physics - A markman fires a .22 caliber rifle horizontally at a target the ...

PHYSICS - A rifle is aimed horizontally at a target 31 m away. The bullet hits ...

physics - A 30-06 caliber hunting rifle fires a bullet of mass 0.0118 kg with a ...

Physics - A rifle with a mass of 1.84 kg fires a bullet with a mass of 4.5 g (0....

Physics - A rifle with a mass of 1.2 kg fires a bullet with a mass of 6.0 (0....

PHYSICS 11th - A girl holds a 1.7 kg air rifle loosely and fires a bullet of ...

Science: Physics - A physics teacher shoots a .30 caliber rifle at a 0.47 kg ...

Calculus - a rifle aimed horizontally and 5 feet above level ground fires a ...

Calculus - a rifle aimed horizontally and 5 feet above level ground fires a ...