Agatha asked in Science

Pls help with c and d

Thank You

Deepika Sharma answered this

Dear Student

(c) X is sliding on a smooth surface, so it will reach earlier than Z (as there is friction on the rough surface).

(d) Angle remains the constant and time will be different. Z is sliding on the rough surface so it will take more time.
At a particular angle, time taken by object Z to reach is more as compared to X.
See the graph below.