What must be true if an object is speeding up in a straight line? The x component of the acceleration must be negative. The direction of the acceleration is the same as the direction of the velocity. O The acceleration is perpendicular to the velocity. O The direction of the acceleration is opposite the direction of the velocity. O The x component of the acceleration must be positive.

Help me with these set of questions. Please do provide a complete solution to justify the answers. Thank you.

So is final answer 1/2 or 1/4.  I'm confused regarding your final answer.

Could you possibly include a picture of the written solution, the transcription gets a bit confusing! Thank you :)

where does the 0.75 come from isint it supposed to be 0.5?

I want to ask the question(a)'s answer ,why the positive root isn't physically valid .

Please answer the last 2, Thank you.

How do I solve this?

For (b), why do we divide the (100Wx8h) by (103Wh)? I get that we need to cancel out the Wh, but why do we divide by 103 specifically?

Hey, I'm really so sorry for leaving this out, but I completely forgot to tell you that I need the answer in the amount of years it takes. That's totally on me, I apologize. Also, I can't tell if the dot between the two 2s in the answer is a multiplication symbol or a decimal point.