A soldier on a firing range fires an 8-shot burst from an assault weapon at a full automatic rate of 1000 rounds per minute. Each bullet has a mass of 7.48 g and a speed of 294 m/s relative to the ground as it leaves the barrel of the weapon. Calculate the average recoil force exerted on the weapon during that burst.

The average recoil force exerted on the weapon during that burst is 36.65 N

Explanation:

Bullet Mass - m = 7.48 * kg.

Bullet Speed - v = 294 m/s.

This way knowing that for each firing, the time elapsed is

Δt = 60 s / 1000 rounds = 0.06 s / round.

The average recoil force exerted on the weapon during that burst is given by F = -mv/Δt

F = -mv/Δt = -(7.48 * kg)*(294 m/s) / 0.06s = -36.65 N.

The negative sign means it is directed in an opposite direction of the bullet.

i think the answer is a and b

i wish you luck

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min