Experiment #1 : Constant System Mass with increasing Force 1. For this experimen

Question

Experiment #1 : Constant System Mass with increasing Force 1. For this experiment, the total system mass is kept constant but the mass causing the applied force is increased for each run. 2. Weigh the empty pascar and the empty hanger separately and record their masses. 3. For the first run, put 70g (made up of three 20 g and one 10 g masses) on the pascar and 20g on the hanger. Please note that the "Hanging mass" is the sum of the hanger's actual mass and whatever mass is placed on it, and the "Mass of Cart" is the sum of the pascar's actual mass and whatever mass is placed on it. For each run, one student will be the "car operator" and another student will activate the computer program when ready for data acquisition. 4. 5. To start a "run" the car operator should firmly hold the pascar 15 cm away from the sensor.

Explanation / Answer

1: constant system mass with increasing force, Newtons second law states that the acceleration of an object increases with increased force and decreases with increased mass. This law also states that the direction in which an objects accelerates in the same as the direction of the force. The acceleration of each shopping carts depends upon two things. 1) the size of the force applied on the shopping cart. 2)the mass of the shopping cart. In the left hand photograph, the force on the cart changes, while the mass of the cart stays the same.in the right hand photograph the force on the cart stays the same and the mass of the cart varies.Notice how mass and force affect accleration. Increasing force increasing acceleration. Increase mass decrease acceleration. The force exerted on the cart by the man is greater than the force exerted by the boy on the cart,so the acceleration is greater. The mass of full cart is greater than the mass of empty cart and the boy is pushing the with same force so the acceleration is less

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