Answer:
5.22 m/s²
Explanation:
From the question given above, the following data were obtained:
Initial velocity (u) = 0 m/s
Final velocity (v) = 12 m/s
Time (t) = 2.3 s
Acceleration (a) =.?
Acceleration is defined as the change of velocity with time. Mathematically, it is expressed as:
Acceleration (a) = final velocity (v) – initial velocity (u) / time (t)
a = (v – u) /t
With the above formula, we can obtain the acceleration of the racehorse as follow:
Initial velocity (u) = 0 m/s
Final velocity (v) = 12 m/s
Time (t) = 2.3 s
Acceleration (a) =.?
a = (v – u) /t
a = (12 – 0) / 2.3
a = 12 /2.3
a = 5.22 m/s²
Therefore, the average acceleration of the racehorse is 5.22 m/s²
Answer:
6m/s
Explanation:
- Acclⁿ = 3m/s²
- Displacement = 6m .
- Initial velocity = 0m/s .
- Final velocity = ?
We know that ,
2as = v² - u²
2 * 3m/s² * 6m = v² - (0)²
v² = 36m²/s²
v = √36 m²/s²
v = 6m/s
Answer:
51.3 Degrees
The presence of person above the center of mass of ladder will make the ladder more likely to slip.
Explanation:
Explanation in the attachment.
Answer:
90,720 words
Explanation:
The different ways in which a given number of n things or items can be arranged where all of the items are taken at the same time is known as ⁿPₙ which is the same as n factorial, n!
Therefore, the number of alphabets in the word AAAABBCCD = 9
Hence, the number of different words will exclude words where the 4 A, 2 Bs, and 2 Cs are together, and include the number of ways where the the grouped letters can be arranged among themselves as follows
9! × 4! /(4! × 2! × 2!) = 90,720 words
Use magnets as iron is magnetic
