The labeled graphs below represent the
upward trajectories of 4 bodies, two sliding upwards on frictionless
inclines and two in free flight.

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The time of travel of R is _____
that of P
•
The initial speed of Q is _____
that of N.
•
The time of travel of Q is _____
that of N
•
The initial speed of R is _____
that of P.
•
The time of travel of N is _____
that of P.
•
The initial speed of N is _____
that of P.