What study did james e hansen focus on
2 answers:
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Answer:
6.32s
Explanation:
Given parameters:
Length of track and distance covered = 200m
Acceleration = 10m/s²
Unknown:
Time taken to cover the track = ?
Solution:
To solve this problem, we apply one of the motion equations as shown below:
S = ut + at²
S is the distance covered
t is the time taken
a the acceleration
u is the initial velocity
The initial velocity of Superman is 0;
So;
S = at²
200 = x 10 x t²
200 = 5t²
t² = 40
t = 6.32s
Answer:
See Explanation
Explanation:
Given
Solving (a): Units and dimension of
From the question, we understand that:
--- length
--- time
Remove the other terms of the equation, we have:
Rewrite as:
This implies that has the same unit and dimension as
Hence:
--- dimension
Length (meters, kilometers, etc.)
Solving (b): Units and dimension of
Remove the other terms of the equation, we have:
Rewrite as:
Make the subject
Replace s and t with their units
Hence:
--- dimension
--- unit
Solving (c): Units and dimension of
Remove the other terms of the equation, we have:
Rewrite as:
Make the subject
Replace s and t with their units [ignore all constants]
Hence:
--- dimension
--- acceleration
Solving (d): Units and dimension of
Remove the other terms of the equation, we have:
Rewrite as:
Make the subject
Replace s and t with their units [Ignore all constants]
Hence:
--- dimension
--- unit
Solving (e): Units and dimension of
Remove the other terms of the equation, we have:
Rewrite as:
Make the subject
Replace s and t with their units [ignore all constants]
Hence:
--- dimension
--- unit
Solving (e): Units and dimension of
Ignore other terms of the equation, we have:
Rewrite as:
Make the subject
Replace s and t with their units [Ignore all constants]
Hence:
--- dimension
--- units