Question

A particle moves on x-axis as per equation x = (t3 – 9t2 + 15 t + 2)m. Distance travelled by the particle between t = 0 and t = 5 s is (A) 25 m (B) 39 m (C) 23 m (D) 52 m

Answer 1

Explanation:

particle moves on x-axis as per equation x = (t3 – 9t2 + 15 t + 2)m. Distance travelled by the particle between t = 0 and t = 5 s is (A) 25 m (B) 39 m (C) 23 m (D) 52 m

answer is 25 m

Answer 2

Answer:

25m

Explanation:

at t=5s

$x = {5}^{3} - 9 \times {5}^{2} + 15 \times 5 + 2 = - 23$

at t=0s

x=2m

therefore distance =23+2=25m