Find the force of the 3 kg box on the 1 kg box?
Both boxes a = 5 m/s2
Fnet = ma = 1kg(5 m/s2)
= 5 N
Net force on 3 kg box?
20 N - 4 N = 15 N
or Fnet = ma = 3 kg(5 m/s2)
= 15 N
Ex 2)
frictionless surface
Net force on 1 kg mass?
Tension B = 48 N
Tension A = 36 N
Fnet on 1 kg =
12 N
Ex 3)
Find Rope Tension force A
Fnet = ma
20. N = (4 kg)a
a = 5 m/s2
Net force on 1 kg?
F = ma = 5 N
©Tony Mangiacapre., St. Mary's H.S., Manhasset, NY
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