1.

A bullet leaves a rifle with a muzzle velocity of 521m/s. While accelerating through the barrel of the rifle, the bullet moves a distance of 0.840m. Determine the acceleration of the bullet (assume a uniform acceleration).

Answer»

HEY DEAR HERE IS YOUR ANSWER ✌✌❤❤

The question STATES that 0.840 m is the distance travelled within the barrel. Therefore u = 0 m/s, v= 521 m/s. 
This means that a = (v² - u²)/2s. 
This is a reformat of v² = u²+ 2AS 
a = (521^2)/(2 x 0.840) 
a = 161.57 m/s²

HOPE IT HELPS U.
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