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| 1. |
The force F=at+bt square where t=time ,what are dimensions ofa and b? |
| Answer» As you have Force on Left Hand Side, the right hand side quantities also represent force....so at and bt2 represent force..... but dimensional formula of force is Force: M1 L1 T(-2) so, dimensional formula of at and bt 2 is also M1 L1 T(-2) Means, [aT] = M1 L1 T(-2) \xa0SO, [a] = (M1 L1 T(-2) )/T so [a] = M1 L1 T(-3) \xa0Same way for b, bt2 = force so b= force/t2 = M1 L1 T(-4) \xa0 | |