Practice Worksheet: Net Forces and Acceleration



Aim15 Practice Worksheet: Newton’s Second law Name_____________________________

For #1-4, give the net force on the block, and the acceleration, including all work units.

1) 2)

Net Force = ________ a = _______ Net Force = ________ a = _______

3) 4)

Net Force = ________ a = _______ Net Force = ________

a = __________

5)

Net Force = ________ a = _______

For #6-7, using the formula net Force = Mass • Acceleration, calculate the net force on the object.

6) 7)

F = _____________ F = _____________

For #8-9, using the formula net Force = Mass • Acceleration, calculate the mass of the object.

8)

48 N 9)

m = _____________ m = _____________

10) Challenge: A student is pushing a 50 kg cart, with a force of 600 N. Another student measures the speed of the cart, and finds that the cart is only accelerating at 3 m/s2. How much friction must be acting on the cart? Hint: Draw a diagram showing the cart, and the two forces acting on it.

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60 N

300 N

40 kg

26 N

12 N

7 kg

180 N

20 N

40 kg

70 N

190 N

20 kg

200 N

30 N

100 kg

5 kg

a = 40 m/s2

9 kg

a = 3 m/s2

1200 N

a = 6 m/s2

? kg

? kg 44444444

a = 4 m/s2

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