Bro I’m rly sorry but I don’t know the answer to this
The correct answer is 14.2 lb which is choice D.
Let:
F = minimum force required to prevent ball from rolling down the ramp
The formula will be:
F = w * sin theta
F = w * sin (39 degrees)
F = 22.6 * sin (39)
= 14.2 lb (this is rounded to the nearest tenth)
The answer will be 21u^6v^8
8 as that means what two of the same number makes up , in this case 64. 8x8=64