Question 1: A family goes on holiday in a car and decide to visit NASA to stop the journey beingboring for the Sam and his sister Annlo every half an hour they note down thedistance they have
travelled since they left home. They then plot the graph shown in Fig. 1.1.

the first, second, and fifth options

the answer is to check all of them! they all apply well at least i think so!

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.