In the last step we are left with 2 equations. (1) T+10a =98 (2) T-5.00a = 31.5.

Question

In the last step we are left with 2 equations. (1) T+10a =98 (2) T-5.00a = 31.5. Then it just says by solving equations (1) & (2) T =53.7 and a = 4.43m/s2. I don't understand how they gotthose answers. What steps are the next steps? From the other information we are givin: m1 =5.00kg, m2 = 10.0kg , and = 40 In the last step we are left with 2 equations. (1) T+10a =98 (2) T-5.00a = 31.5. Then it just says by solving equations (1) & (2) T =53.7 and a = 4.43m/s2. I don't understand how they gotthose answers. What steps are the next steps? From the other information we are givin: m1 =5.00kg, m2 = 10.0kg , and = 40

Explanation / Answer

T+10a = 98-----(1) T -5a =31.5-----(2) eq 2 multiply with 2 then 2T -10a = 63 --(3)adding 1and 3eq then    3T= 161 T = 161.7/3 =53.7 next subtract eq 1 and 3 then 15a = 66.5 a = 66.5/15 = 4.43m/s2

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