Part A: Consider the beam above, which has a downward facing point load that moves over the

top of it$.$ Draw an influence line diagram for the vertical reaction at point B$.$

Part B: Consider the beam above, which has a downward facing point load that moves over the

top of it$.$ Draw the influence line diagrams for the shear and moment at point C $.$

Part C: Based on your response to Part B$,$ determine the maximum absolute value of the

moment and shear at point C in the beam when a $7\mathrm{.}5$ kip downward point load crosses over the

beam.

Part D: Based on your response to Part B$,$ determine the moment and the shear at point C in the

beam when both a $11$ kip downward point load is $6$ feet from the left end of the beam and when a

$6\mathrm{.}3$ kip upward point load is $3$ feet from the right end of the beam.

Note: Do not use equilibrium equations to solve Parts C or D$.$