The correct answer of the given question above would be 8ft/sec. The minimum speed that the stone be thrown so as to reach a height of 49 feet is 8ft/sec. Consider this given solution here:
u^2 = 2x a x 1
<span>u^2 = 2 x 32 x 1 </span>
<span>u = 8 ft/sec
</span>Hope this answer helps and this is what you are looking for.
40 ton x 2000 = 80,000 pounds
320000/8000 = 40 pounds per person
A. Second would be both u.s. and metric systems..
ANSWER

EXPLANATION
If A and B are independent events, then
P(A and B)=P(A)×P(B)

Multiply both sides by;





