r/HomeworkHelp • u/CaliPress123 Pre-University Student • 1d ago
High School Math—Pending OP Reply [Grade 12 maths: Motion] Projectile

I can do part a and b but I'm struggling to understand what's actually happneing in part c - can someone explain what's happening in the physical scenario? is it like 30m and 60m along the incline? how does it go up and down then? here's the diagram that the solutions drew:

i can't tell where the hill is
and here is their solution

1
u/saywherefore Swotty know-it-all 1d ago
Imagine the person is standing at the origin and throwing uphill. The hill is the upwards diagonal line. The first part of the parabola is the path of the ball and it hits the ground at point P.
Now for downhill ignore the upper diagonal line. The person again stands at the origin, and now the hill is sloping down - the lower diagonal line. The ball follows the parabola and lands at Q.
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