O Level Physics e-Book's MCQs - Complete
Balanced Forces and Unbalanced Forces Quiz App & e-Book PDF Download - 227
Apps:
MCQ 227:
A wooden trolley of mass 20 kg accelerates at 2 m s-2, if the force due to engine is 50 N, the friction force is equal to
- 1 N
- 10N
- -10 N
- None of the above
b
O Level Physics App & e-Book Tests PDF Download
Pressure Physics Test 238
Measuring Time Test 239
Acceleration and O Level Physics Test 240
Temperature Scales Test 241
Centre of Gravity and Stability Test 242
Mass and Weight Test 243
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Melting and Solidification Test 245
Temperature Scales Test 246
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