Kathy was building a bed for her dollhouse. She used her bed, which is 3 feet × 5 feet, as a guide. She scaled down the dimensions of her bed by a factor 1 over 5. What are the dimensions of the model bed she built? 0.06 ft × 0.1 ft
0.3 ft × 0.5 ft
0.03 ft × 0.05 ft
0.6 ft × 01 ft

0.6 ft × 1 ft

Step-by-step explanation:

Dimensions of the model bed are each 5 times less than the original one, so

3 feet × 5 feet  original bed

⇒ 3/5 feet × 5/5 feet

⇒ 0.6 feet × 1 feet model bed

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²