A feather dropped on the moon On the moon, a feather willfall to the ground at the same rate as a heavy stone. Suppose afeather is dropped from a height of 40 m above the surface of themoon. Its height (in meters) above the ground after t seconds iss = 40 - 0.8t2. Determine the velocity and acceleration of thefeather the moment it strikes the surface of the moon
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
A feather dropped on the moon On the moon, a feather will
fall to the ground at the same rate as a heavy stone. Suppose a
feather is dropped from a height of 40 m above the surface of the
moon. Its height (in meters) above the ground after t seconds is
s = 40 - 0.8t2
. Determine the velocity and acceleration of the
feather the moment it strikes the surface of the moon
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