Two cars, X and Y

PHYSICS · Multi-part · CBSE · Physics · Motion · Motion

Problem

Two cars, X and Y, move along the same straight road for 20 s20\,\text{s} starting from the same point at the same instant. • Car X travels with a constant velocity of 15 m s−115\,\text{m}\,\text{s}^{-1}. • Car Y starts from rest and moves with a uniform acceleration of 2 m s−22\,\text{m}\,\text{s}^{-2} throughout the motion. Answer the questions given below. (i) Write the equation you will use to obtain the distance covered by car Y in the given time. (ii) Calculate the distance travelled by each car in 20 s20\,\text{s}. (iii) Which car covers the greater distance in this interval? Explain with reference to your results.

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