Question

a body is moving with velocity 30m/s towards east after 10 second its velocity becames 40m/s towards north the average acclection of the body is

Answer 1

$a =( v - u )\div t \\ a = (40 - 30) \div 10 \\ a = 10 \div 10 \\ a = 1m \div s {?}^{2}$