Answer:
282.6 N
Explanation:
Draw a free body diagram of the suitcase. There are three forces:
Weight force mg pulling down,
Normal force N pushing up,
and 100 N down at angle 60° with the horizontal.
Sum of forces in the y direction:
∑F = ma
N − mg − 100 sin 60° = 0
N = mg + 100 sin 60°
N = (20 kg) (9.8 m/s²) + 100 sin 60°
N = 282.6 N
Round as needed.
