Question

A particle is moving with initial velocity ū=1-1+k. What should be its acceleration so that it can
remain moving in the same straight line?
(A) a = 21-2j+2k (B) a = -2i+2j-2K (C) a=3i+3j-3k (D) a = 1j-1j​

Answer 1

Answer:

simple to answer,

According to Newton's first law.

unless an ext force applied,the object will continue to be at rest or in uniform motion...right,

then,for what acceleration the above statement hold good. force should be zero,because it remain in uniform motion,for force to be zero ,acceleration is also should be ZERO

ANSWER: d

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chayan,if understood mark as brainliest..