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1. |
Stones A, B, C and D of same masses are thrown on a wall. Acceleration produced in them are \[2m/se{{c}^{2}},\text{ }3\text{ }m/se{{c}^{2}},\text{ }5\text{ }m/se{{c}^{2}},\text{ }4\text{ }m/se{{c}^{2}}\] respectively. Arrange the force exerted by the stones in descending order. |
A. | \[{{f}_{A}}>{{f}_{B}}>{{f}_{C}}>{{f}_{D}}\] |
B. | \[{{f}_{D}}>{{f}_{C}}>{{f}_{B}}>{{f}_{A}}\] |
C. | there is no frictional force between the box and the ground |
D. | \[{{f}_{C}}>{{f}_{D}}>{{f}_{B}}>{{f}_{A}}\] |
Answer» E. | |