A cart was allowed to roll down a ramp from rest. It reached the bottom of the ramp with a speed of 25 cm/s. A student could conclude that the cart

accelerated down the ramp

Explanation:

It can be concluded that the cart accelerated down the ramp is the correct choice.

Acceleration is the rate of change of velocity with time.

We see that as time increases, the velocity of the car also increase.

 Initially, the car is at rest with a velocity of 0cm/s. With the passage of time, as it slides down the ramp, the velocity increases to 25cm/s.

Since acceleration is the rate of change of velocity with time, it is glaring that the acceleration of the body greatly increased as it moves down the ramp

A student could conclude that the cart gained momentum as it rolled down.

Explanation:

If the cart was allowed to roll down the ramp from rest, it means that the initial velocity of the cart is zero (0). Also, if the final velocity of the cart became 25 cm/s, it means that the velocity of the cart increased from 0 to 25 cm/s.

Therefore, A student could conclude that the cart gained momentum as it rolled down.

Independent variable: the best method to get rid of them.

Dependent variable: washing with soap and water.

Hypothesis: Organic oils

Control group: water

Answer:

Step-by-step explanation:

Time taken by the tomatoes to each the ground

using h = 1/2 g t^2 

t^2 = 2h/g = 2 x 50/ 9.8 = 10.2

t = 3.2 sec 

horizontal ditance = speed x time = 3 x 3.2 = 9.6 meters

The question specifies the diameter of the screw, therefore the IMA of this screw is 0.812? / 0.318 = 8.02