Book weight w = 27 N \ \

Pulled with force Fp= 15 N \ \

Frictional force Ff = 8 N \ \

The acceleration of the gravity g = 9.8 m/s \ \

Net force on the book F = ? \ \

The acceleration of the book a = ? \ \

weight w = mg = 27 N \ \

m*9.8 = 27 \ \

m = 27/9.8 \ \

m = 2.755 kg \ \

Net force F = Fp - Ff \ \

F = 15 - 8 \ \

F = 7 N \ \

The acceleration of the book a = F/m \ \

a = 7 / 2.755 \ \

a = 2.541 m/s² \ \

Solution : \ \

Net force on the book is 7 N \ \

The acceleration of the book is 2.541 m/s² \ \

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