 The variation with speed v of the force F acting on an object is given by the expression
F = pv2 + qv,
where p and q are constants.
What quantity should be plotted on the yaxis of a graph and what should be plotted on the xaxis in order to give a straightline graph?

yaxis 
xaxis 
A. 
v 
B. 
v2 
C. 
F 
v 
D. 
F 
v2 