Verified Solution • 2025–26 Session moderate

QAIPMT-2010-Ph-2089: NEET 2010 Physics - Class 11 AIPMT-2010-Ph-2089 Solution: A particle has initial velocity \((3 {i}+4 {j})\) and has…

A particle has initial velocity (3i^+4j^)(3\hat{i}+4\hat{j}) and has acceleration (0.4i^+0.3j^)(0.4\hat{i}+0.3\hat{j}). Its speed after 10 s is

Multiple Choice Options

  • A 7 units
  • B 727\sqrt{2} units
  • C 8.5 units
  • D 10 units

Step-by-Step Verified Solution

u _ = 3 i ^ + 4 j ^ ,   a _ = 0.4 i ^ + 0.3 j ^ _ u x = 3 u n i t s , u y = 4 u n i t s a x = 0.4 u n i t s , a y = 0.3 u n i t s _ v x = u x + a x _ 10 = 3 + 4 = 7 units and v y = 4 + 0.3 _ 10 = 4 + 3 = 7 units _ v = v x 2 + v y 2 = 7 2 units

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