Anwser
For general projectile motion with no air resistance, the horizontal component of a projectile's velocity ... D. first decreases and then increases ... E. The speed of the object is constant but its velocity is not constant. C ... Neglecting air resistance, when the package hits the ground
Explanation:
Hi there!
a.
The equation for centripetal acceleration is as follows:
![\large\boxed{a_c = \frac{v^2}{r}}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Ba_c%20%3D%20%5Cfrac%7Bv%5E2%7D%7Br%7D%7D%7D)
Plug in the given values to solve:
![\large\boxed{a_c = \frac{(65)^2}{75} = 56.33 m/s^2}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Ba_c%20%3D%20%5Cfrac%7B%2865%29%5E2%7D%7B75%7D%20%3D%2056.33%20m%2Fs%5E2%7D)
b.
According to Newton's Second Law:
![\large\boxed{\Sigma F = ma}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5CSigma%20F%20%3D%20ma%7D%7D)
The acceleration is v²/r, so the net force is:
![\large\boxed{\Sigma F = m(\frac{v^2}{r})}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5CSigma%20F%20%3D%20m%28%5Cfrac%7Bv%5E2%7D%7Br%7D%29%7D%7D)
Multiply by the given mass:
![\large\boxed{\Sigma F = 700(56.33) = 39433.33 N}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5CSigma%20F%20%3D%20700%2856.33%29%20%3D%2039433.33%20N%7D%7D)
c.
There is NO net force in the vertical direction since the object is NOT accelerating in the vertical direction (normal force and weight cancel).
Thus, the ONLY net force experienced by the object is in the horizontal direction and is EQUAL to the centripetal force.
Answer:
The correct answer is "By increasing the amount of flooding because of rising sea levels".
Explanation:
- The global temperature chart reflects an approximation across the whole planet's atmosphere. Owing to relatively stable entertain as well as the difficult-to-predict wind but instead, weather patterns structures, the temperature changes we perceive domestically as well as in brief periods could vary dramatically.
- Doubling the volume of floods due to rising water levels might also significantly affect the ordinary increase in energy consumption on Earth.
Inertia is defined as the tendency of a body to preserve its state of rest or uniform motion unless acted upon by an external force.
When a bus at rest starts to move suddenly,the passenger move backward because of inertia of the passenger to remain in the state of rest .
The kinetic energy of any moving object is
(1/2) (mass) (speed²) .
For the object you described, that's
(1/2) (100 kg) (12.5 m/s)²
= (50 kg) (156.25 m²/s²)
= 7,812.5 joules
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Your attachment is way out of focus, and impossible to read.