Question

What difference in recoil would you expect while firing a solid ball versus a hollow ball with same speed from same cannon? Explain in details.​

Answer 1

Answer:

recoil of cannon will be less for hollow ball if its mass is less than solid ball

Explanation:

according to conservation of momentum

m1v1'+m2v2' before firing = m1v1+m2v2 after firing

momentum before firing =0 since velocities of both ball and cannon are zero

i.e

0 = m1v1+m2v2

recoil of cannon V2 = -m1v1/m2

v1 and m2 are constant for both hollow and solid balls according to question

so v2 =m1*k , k-constant

if hollow ball has less mass than solid ball then firing hollow ball will produce less recoil