The chemical's name to the right, in molecular or ionic compound , usually ends in -ide How do we know which chemical goes first
1 answer:
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Answer:
Eleven seconds.
Explanation:
Two keys are needed to solve this problem. First, the conservation of momentum: allowing you to calculate the cart's speed after the elephant jumped onto it. It holds that:
So, once loaded with an elephant, the cart was moving with a speed of 4.29m/s.
The second key is the kinematic equation for accelerated motion. There is one force acting on the cart, namely friction. The friction acts in the opposite direction to the horizontal direction of the velocity v0, its magnitude and the corresponding deceleration are:
The kinematic equation describing the decelerated motion is:
It takes 11 seconds for the comical elephant-cart system to come to a halt.
Answer:
Explanation:
Given
-- Mass of the boy
-- Mass of the girl
-- Acceleration of the girl towards the boy
Required
Determine the acceleration of the boy towards the girl ()
From the question, we understand that the surface is frictionless. This implies that the system is internal and the relationship between the given and required parameters is:
Substitute values for and
Make the subject
<em>Hence, the acceleration of the boy towards the girl is 1.446m/s^2</em>