(i) 10 m (ii) 20 m (iii) 40 m (iv) 80 m

(c) The maximum potential energy of the object if its mass is 200g 1 mark

(i) 100 J (ii) 120 J (iii) 160 j (iv) 200 J

(d) In the given graph the total mechanical energy will be 1 mark

(i) Same (ii) increases (iii) decreases (iv) will be zero.

(e) In the given graph the kinetic energy 1 mark

(i) Same (ii) increases (iii) decreases (iv) increases then decreases.​