Question SPM.2.SL.TZ0.1
| Date | May Specimen-2023 | Marks available | [Maximum mark: 4] | Reference code | SPM.2.SL.TZ0.1 |
| Level | SL | Paper | 2 | Time zone | TZ0 |
| Command term | Determine, State | Question number | 1 | Adapted from | N/A |
A block of mass 45 kg is placed on a horizontal table. There is no friction between the block and the table.
An object of mass 15 kg is placed on top of the block.
A force F acts on the block so that it accelerates. The acceleration of the object and the acceleration of the block are the same so that they do not move relative to each other.
The coefficient of static friction between the block and the object is 0.60.
State the nature and direction of the force that accelerates the 15 kg object.
[1]
static friction force «between blocks»
AND
directed to the right ✓
Determine the largest magnitude of F for which the block and the object do not move relative to each other.
[3]
F = 60a ✓
Ff = 0.6 × 15 × 9.8 «= 88.2 N» ✓
«N» ✓
Allow use of a = 0.6g leading to 353 N.
