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A car starts from and attains a velocity of 54 km ` h^(-1)` if the acceleration of the car is from rest and attains a velcoity of 54 km `h^(-1)` . If the acceleration of the car is ` 3 m s^(-2)`, write the following steps in sequential order to find the time taken to accelerate the car. (A) Write the relation between u,v,a and t, where t is the time taken to accelerae the car. (B) Note the final velocity (v) and convert it into SI unit. (D) substitute the given values and obtain the vlaue of t using ` t= (v-u)/a`A. ABCDB. ABCDC. CADBD. CBAD |
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Answer» Correct Answer - C ( c) Note the intial velocity of the car u=0 and note down its acceleration. (B) Note th final velocity (v) and convert into SI unit. (A) Write the relation between u,v,a and t, where t is the time taken to accelerate the car . (D) Substitute the given values and obtain the valu of t , using `t = ( v-u)/a` |
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