Using W = FS, here assume you are lifting with constant speed, then F is equal to gravity
F = 78.6 * 0.45 = 35.37 N
S = 0.3 * 4 = 1.2 m
So W = 35.37 * 1.2 = 42.44 J
Answer:
13 or B
Step-by-step explanation:
1 pound=16 oz
4 1/4=4.25, 4.25*16=68
68+10=78
78/6=13
Slope formula: y2-y1/x2-x1
= 7-5/8-3
= 2/5 (Answer)
Best of Luck!