Question

Ann and Bob are holding up a31.0 kg table. Ann lifts with a125 N force. How much forcedoes Bob exert?

Answer 1

Given

Mass of table (mt) = 31kg

Force of Ann (FA) = 125 N

Force of Bob (FB) = ?

Acceleration due to gravity (g) = 9.8 m/sec²

Answer

FA + FB = (W)Table

FA+ FB = mt x g

125N + FB = 31kg x 9.8m/sec²

FB = (31kg x 9.8m/sec²) – 125N

FB = 303.8N – 125N

FB = = 178.8N

force of Bob (FB) = 178.8N