# 1991 Subaru Legacy 2.2L starts and idles fine for couple minutes but after-wards sounds like a miss in the engine causing entire car to shake and almost cut off Also has hesitation during acceleration?

### How much force is needed to lift 70kg box with an 2 minutes per seconds acceleration of the box?

You need to calculate the force to lift the box without acceleration (weight = mg), PLUS the force required for the acceleration (F = ma). By the way, "2 minutes per second" is not a valid acceleration. Acceleration should be in units of (distance / time / time); and you must convert it to meters/second/second (meters/second2) to have consistent units.

### What is the Acceleration of a car traveling at a constant speed of 60 miles per hour for 30 minutes?

### What is the acceleration of a ball that is traveling at a constant velocity of 50 meters per second and has been traveling for 2 minutes?

zero - it is constat velocity. so acceleration is zero 50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.

### A car has a velocity that changes from 6 meters per second to 16 meters per second in 4 minutes what is the average acceleration of the car?

Magnitude of average acceleration = (change of speed) divided by (time for the change) Average 'A' = (16 - 6) / 240 seconds = 10/240 = 1/24 meter per second2 -- That's the average over the 4 minutes. We don't know anything about the value of the acceleration at any particular instant during the 4 minutes.. -- We're working entirely with scalars ... speed, not velocity, and magnitude of acceleration ... since we don't know…

### How long is the procedure of getting your ears pierced?

Not very long! It takes about 5 minutes to get them pierced, and about 10 minutes for the pain to go away! its takes like one minute Its takes about 3-5 minutes to get them pierced, and about 5-8 minutes for the pain to go away. By the way there's not much pain afterwards its like someone just pinched you on your ear.

### Does acceleration have to be measured in seconds or can it be measured in hours or minutes?

Usually measured in seconds (m/s2), you can measure it in hours or minutes, but those units of time must be translated into seconds, ie: The turtle has an acceleration of 45meters/70minutes ; 60 seconds in one minute, 60 x 70 = 4200 seconds = 45metes/4200 seconds. Therefore the turtle can travel 45 meters every 4200 seconds.