Two masses are connected by a string and pulled along a frictionless surface by anoth

[Ahmad786]

17. Two masses are connected by a string and pulled along a frictionless surface by another
string one is 5kg and the other is 10 kg to which a tension of 40.0 N is applied. The magnitude of the system’s acceleration
is
A. 8.0 m/s²
B. 20 m/s²
C. 13 m/s²
D. 2.7 m/s²
(For this question I added the two masses to get the mass and then I used the equation a=f/m to find the acceleration)

Is D. the correct answer?

 

[Doc Al]

Looks good to me.

 

[kerimek]

Yes, D. 2.7 m/s2 is the correct answer. To find the acceleration, we can use the equation a = F/m, where F is the applied tension and m is the total mass of the system. In this case, the total mass is 5 kg + 10 kg = 15 kg. Therefore, the acceleration is a = 40.0 N / 15 kg = 2.7 m/s2. This is the correct answer.