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I would say positive,

as she starts the incline of the hill,

she has to pedel harder and harder,

whilst doing this she would be slowing down,

so yeah, positive

Q: Suppose Sharon rides her bike at a speed of 10 ms as she rides up a hill her speed decreases to 5 ms is her acceleration positive or negative?

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Acceleration is nothing but rate of increase in velocity. If acceleration at the time is positive velocity will increase independent of acceleration in past. Suppose you are moving at 5m/s at t=0. Acceleration is 5m/s2 initially. At t = 1 your velocity will be 10m/s. If acceleration became 3m/s2, then your velocity at t = 2 will be 13m/s. Thus your velocity still increased but comparatively lesser in amount. Now if acceleration became -8m/s2, velocity at t = 3 will be 5m/s, thus velocity decrease due to negative acceleration.

suppose when we apply brakes to a car in motion then the speed of the car decreases which means the acceleration is backwards but the car is still running in the forward direction

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Contact the company it could be a faulty test.

Suppose x and y are two POSITIVE numbers so that -x and -y are negative. Then a negative minus a negative = (-x) - (-y) = -x +y If x > y the answer is negative If x = y the answer is zero If x < y the answer is positive

Integers can be used for everyday life! There are two kinds of integers - positive and negative. Integers greater than 0 are positive integers, while integers less that 0 are negative integers. Zero is neither positive nor negative. For example, the game Mancala is an African game that is over 3,000 years old. The object is for a player to capture the opponent's stones. Suppose a player removes 12 opponent's stones. Since there is a decreases in stones, the negative integer, -12, represents this situation.

The best way to figure this out would be to use an example. So suppose you had a -20 and divided that by a positive 5. That would give you a -4. Take that -4 and divide it by a -2 which would give you a positive 2 (knowing that two negative numbers cancel out to make a positive number). Thus a negative divided by a positive divided by a negative would give you a positive number.

I suppose you are talking about one to an amp. If so, you have to hook up a positive from one side to the negative of the other.

acceleration doubles too.

firstly, we should know what is meaning of accelerate i.e(to increase)that means acceleration is something which increases some physical quantity.In mechanics,acceleration means rate of change of velocity per unit time .a=v-u/twhere v=final velocity, u=initial velocity ,t=time& a=accelerationnow ,if the change in velocity is positive then i.e final velocity is greater than initial velocity.Suppose to be positive acceleration or simply acceleration.But when change in velocity is negative then acceleration is negative suppose to bedeceleration.Important thing is that acceleration is vector .so ,positive or negative accelerationindicates direction of acceleration.hence , force ,by Newton's second law.acceleration tends to increase the velocity of a moving body in the direction of motion while deceleration tends to decrease the velocity of the moving body applies in opposite direction of motion upto zero velocity after which it accelerate means increase velocity of the body but in opposite direction of initial direction of motion.

Just as seeds in a watermelon electrons are embedded in a positive ball

Acceleration can be positive while velocity is negative for an object. For example, If the object (like a car) is moving in a negative direction (let's say west) and the brakes are applied to slow the car down. This causes the car to accelerate (commonly called deceleration) in the positive direction until it stops. Mathematically, one could work this out by taking the change in velocity over the change in time. acceleration = (V final - V initial) / time In this example, let's suppose V initial is -20 m/s and V final is -10 m/s, and the time for the velocity change is 5 seconds. Then acceleration would be : -10m/s - (- 20 m/s) divided by 5 seconds = 2m/s/s Thus, we see, an example of negative velocity yielding positive acceleration from an outside net force on the object via the brakes.