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A child pulls a train of 2 cars with a horizontal force F of 10N .

Car1 has a mass of m1=3kg, and car2 has a mass of 1kg

The mass of the string connecting the the cars is small enough to be set equal to zero, and the friction can be neglected .

a- Find the normal force exerted on each car by the floor.

b- What is the tension force in the string

c- Find the acceleration of the train

A child pulls a train of 2 cars with a horizontal force F of 10N .

Car1 has a mass of m1=3kg, and car2 has a mass of 1kg

The mass of the string connecting the the cars is small enough to be set equal to zero, and the friction can be neglected .

a- Find the normal force exerted on each car by the floor.

b- What is the tension force in the string

c- Find the acceleration of the train

thanx

**well plz help me to solve and understand this problem**

I can't figure out why the normal force in this problem is equal to the weight or how to find the acceleration.!! b]

I can't figure out why the normal force in this problem is equal to the weight or how to find the acceleration.!! b]