A donkey pulls a cart along a road with constant force of 100N. A constant force of friction of 50 N acts on the cart. The QUESTION: Calculate the mass of the cart if net force accelerated it at a rate of 10m/s^2

For free fall motion the displacement can be found by graphically as well as by kinematics equation

Here acceleration of object is constant as it fall due to gravity so we can use

here if body starts with zero initial speed then we can say

here we need to find the displacement from t = 0 to t = 6s

so we can say

so the displacement will be 176.4 m

in order to find the displacement from the graph of velocity and time we need to find the area under the graph for given time interval that will also give us same displacement for given period of time.