Practice Worksheet: Net Force and Acceleration Name For each of the following problems, give the net force on the block, and the acceleration, including units. 1) 10 N 30 N 4 kg 2) 4 N Skg 6 N Net Force = a = F/m = Net Force = a = F/m = 3) 180 N 4) 40 kg 7 N 140 N Net Force = a= Net Force = 2 kg a = 5) 30 N 200 N 100 kg 17 N Net Force = a= For problems 6-9, using the formula net Force = Mass . Acceleration, calculate the net force on the object. a = 2 m/s2 7) 8 kg 5 kg a = 2 m/s2 F = m.a = F = m.a = 9) a = 8 m/s2 8 kg a = 3 m/s2 200 kg F = m.a = F = m.a = 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/s . How much friction must be acting on the cart? Hint: Draw a diagram showing the cart, and the two forces acting on it. Practice Problem Set F=ma > FORCE = MASS x ACCELERATION Name