- Messages
- 1,171
- Reaction score
- 4,151
- Points
- 273
The mass of the object is 0.6 kg and its acceleration of 4 m/s^2. So first use F=ma to calculate the force required to accelerate a 0.60 kg mass to 4 m/s^2.Can anyone tell me how to solve 9702/01/O/N/07 question 10
F=ma
F=0.60 x 4= 2.4N
But the force applied is 12N and the force needed to cause this much acceleration is only 2.4 N.
Therefore, the friction force is 12 - 2.4= 9.6N
The answer is D.