A-LevelMathematicsMechanics9709/41 · May/June 2017 · Q13 Marks
A particle of mass 0.6 kg is dropped from a height of 8 m above the ground. The speed of the particle at the instant before hitting the ground is 10 m s⁻¹. Find the work done against air resistance.
- A particle of mass 0.6 kg is dropped from a height of 8 m above the ground. The speed of the particle at the instant before hitting the ground is 10 m s⁻¹. Find the work done against air resistance.[3]
Mark scheme
Marking points from the official mark scheme (May/June 2017). The mark or mark type is shown in brackets.
- PE loss = 0.6 × 10 × 8 [= 48]
- KE gain = ½ (0.6) 10² [= 30]
- WD against Res = 48 – 30 = 18 J
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →