DP Physics (last assessment 2024)
Question 19M.2.SL.TZ2.aii
Date | May 2019 | Marks available | [Maximum mark: 2] | Reference code | 19M.2.SL.TZ2.aii |
Level | SL | Paper | 2 | Time zone | TZ2 |
Command term | Calculate | Question number | aii | Adapted from | N/A |
aii.
[Maximum mark: 2]
19M.2.SL.TZ2.aii
A student strikes a tennis ball that is initially at rest so that it leaves the racquet at a speed of 64 m s–1. The ball has a mass of 0.058 kg and the contact between the ball and the racquet lasts for 25 ms.
Calculate the average power delivered to the ball during the impact.
[2]
Markscheme
ALTERNATIVE 1
✔
» ✔
ALTERNATIVE 2
✔
» ✔
Examiners report
This was well answered although a significant number of candidates approached it using P = Fv but forgot to divide v by 2 to calculated the average velocity. This scored one mark out of 2.
