DP Physics (first assessment 2025)
Question 23M.2.SL.TZ2.1d
Date | May 2023 | Marks available | [Maximum mark: 3] | Reference code | 23M.2.SL.TZ2.1d |
Level | SL | Paper | 2 | Time zone | TZ2 |
Command term | Calculate | Question number | d | Adapted from | N/A |
d.
[Maximum mark: 3]
23M.2.SL.TZ2.1d
(d)
After a second bounce, the bottle rotates about its centre of mass. The bottle rotates at 0.35 revolutions per second.
The centre of mass of the bottle is halfway between the base and the top of the bottle. Assume that the velocity of the centre of mass is zero.
Calculate the linear speed of the top of the bottle.
[3]
Markscheme
ALTERNATIVE 1
ω = 2(0.35) «=2.20 rad s−1» ✓
Use of v = 0.14ω ✓
0.31 «m s−1» ✓
ALTERNATIVE 2
T = «= 2.9 s» ✓
V = OR = ✓
v = 0.31 «m s−1» ✓
Award [3] for BCA
