Use the exact values you enter to make later calculations. A bullet is fired fro

Question

Use the exact values you enter to make later calculations.

A bullet is fired from a rifle that is held 2.0 m above the ground in a horizontal position. The initial speed of the bullet is 1070 m/s. There is no error in the velocity value.

(c) If the error in time measurements is ?t, what will be the equation to calculate error in the horizontal distance (?x)? (Assume x is in meters and t is in seconds. Do not enter units in your expression. Substitute numeric values; the only variable you should enter is ?t. Enter your coefficient to at least four significant figures.)

?x=?

Explanation / Answer

here

u = 1070 m/s

h = 2.0 m

then time in air

t^2 = 2h / g

t^2 = (2 * 2 ) / 9.8

t = 0.6388 sec

then the distance x = ut + at^2 / 2

here   

a = o m/s^2

x = ut + 0

x = 1070 * 0.6388

x = 683.516 m

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