Question

A bullet is fixed from a gun . the noozle velocity (the moment bullet comes out) is 20m/s. If penetrates the sand up to a distance of 10cm. Find the acceleration​(ans. -2000m/s²)

Answer 1

Explanation:

Given that

• s=0.1m
• u=20m/s
• v=0 m/s
• a=?

the formula is to be used is v^2-u^2=2as

(0)^2-(20)^2=2*a*0.1

= -400÷(2*0.1)=a

we get a= -2000 m/s^2.