A moving roller coaster speeds up with constant acceleration for 2.3s until it reaches a velocity of 35m/s. During this time, th
e roller coaster travels 41m. We want to find the initial velocity of the roller coaster before it starts to accelerate. Which kinematic formula would be most useful to solve for the target unknown?
1 answer:
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Answer:90 m/s
Explanation:
Given
Speed of both the car is
Suppose North side and East side as Positive Y and x axis
so Velocity of car A can be written as
Velocity of car B is
Velocity of car A relative to car B is given by
Magnitude of velocity is
<u>Answer:</u>
Mass of leaves in scientific notation =
<u>Explanation:</u>
Number of leaves released by type of deciduous tree = 7500 leaves on average each fall
Mass of 1 leaf = 1.7 grams =
Mass of 7500 leaves =
No trees per acre = 206
Area of forest = 135,000 acre.
Total no of trees in 135,000 acre = 135,000 * 206 = trees
Mass of leaves fallen in 135,000 acre =
Mass of leaves in scientific notation =