The masses of 10 kg and 20 kg respectively are connected by massless spring. A force of 200 N acts on the 20 kg mass. At the instant shown, the 10 kg mass has an acceleration of 12 m/s |
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(a) |
12 m/s |
(b) |
4 m/s |
(c) |
20 m/s |
(d) |
5 m/s |

The masses of 10 kg and 20 kg respectively are connected by massless spring. A force of 200 N acts on the 20 kg mass. At the instant shown, the 10 kg mass has an acceleration of 12 m/s |
|||||||

(a) |
12 m/s |
(b) |
4 m/s |
(c) |
20 m/s |
(d) |
5 m/s |

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