Answer:
its false
Explanation:
because if an leaf floats down from a tree it is not considered an object for a free-fall
So, the speed of the ball after 2 seconds after free fall is <u>20 m/s</u>.
<h3>Introduction</h3>
Hi ! I'm Deva from Brainly Indonesia. In this material, we can call this event "Free Fall Motion". There are two conditions for free fall motion, namely falling (from top to bottom) and free (without initial velocity). Because the question only asks for the final velocity of the ball, in fact, we may use the formula for the relationship between acceleration and change in velocity and time. In general, this relationship can be expressed in the following equation :

With the following conditions :
- a = acceleration (m/s²)
= speed after some time (m/s)
= initial speed (m/s)- t = interval of time (s)
<h3>Problem Solving</h3>
We know that :
- a = acceleration = 9,8 m/s² >> because the acceleration of a falling object is following the acceleration of gravity (g).
= initial speed = 0 m/s >> the keyword is free fall- t = interval of time = 2 s
What was asked :
= speed after some time = ... m/s
Step by step :




So, the speed of the ball after 2 seconds after free fall is 20 m/s.
Answer:
3/4 of 12 = 16
3/4 of 24 = 32
Those are the answers based on how your question sounded
Explanation:
Explanation:
Momentum before collision:
(2 kg) (4 m/s) + (5 kg) (-3 m/s) = -3 kg m/s
No external forces act on the balls, so momentum is conserved. Therefore, momentum after collision is also -3 kg m/s.
Microwave<span> oven wattage </span>input<span> or </span>output<span>. Power consumption is energy consumed by the device from your home power grid. The energy </span>output<span> is actual power emitted by the magnetron in the form of </span>microwaves<span> for heating the food.</span>