Answered

Maligayang pagdating sa Imhr.ca, kung saan ang iyong mga tanong ay masasagot ng mga eksperto at may karanasang miyembro. Nagbibigay ang aming platform ng seamless na karanasan para sa paghahanap ng eksaktong sagot mula sa isang network ng mga bihasang propesyonal. Tuklasin ang malalim na mga sagot sa iyong mga tanong mula sa isang malawak na network ng mga eksperto sa aming madaling gamitin na Q&A platform.

What is the acceleration of a baseball thrown to the air at an angle of 45 degrees with respect to the horizontal as it returns to the ground?
A.0m/s
B.9.8m/s
C.0m/s2
D.-9.8 m/s2​

Sagot :

MrChris

[tex]\underline{\underline{\large{\green{\cal{GIVEN:}}}}}[/tex]

The angle with respect to the horizontal as baseball returns to the ground is θ = 45°.



[tex]\underline{\underline{\large{\green{\cal{REQUIRED:}}}}}[/tex]

What is the acceleration of a baseball thrown into the air at an angle of 45°.



[tex]\underline{\underline{\large{\green{\cal{EXPLANATION:}}}}}[/tex]

Hi! Brainly User, to answer the question, we need to remember few concepts first:

In projectile motion for any baseball once it is thrown and is in the air, gravity is the only force affecting it after ignoring the force of air resistance. Gravity conspires to produce constant acceleration on the baseball in the downward direction, regardless of where it is in the trajectory.

 

This type of acceleration is described as constant, and it is also referred to as acceleration due to gravity, or g, and has a value of [tex]\rm{9.8 m/s^2}[/tex]. It is always acting downwards towards the center of the earth.

Option A: This is wrong because velocity is represented by 0 m/s. ✘

Option B: This is wrong because it gives the value of gravitational acceleration without including appropriate units. ✘

Option C: This is incorrect, as it suggested no acceleration but almost constant activity from gravity in relation to the baseball. ✘

Option D: The answer to this question is: This is the correct answer. The negativity of the value means that the orientation of the acceleration is this way, downwards. ✓



Final Answer:

[tex]\therefore[/tex] The acceleration of a baseball thrown into the air at an angle of 45° is D. -9.8 m/s².

Pinahahalagahan namin ang iyong oras sa aming site. Huwag mag-atubiling bumalik kailanman mayroon kang mga karagdagang tanong o kailangan ng karagdagang paglilinaw. Pinahahalagahan namin ang iyong pagbisita. Lagi kaming narito upang mag-alok ng tumpak at maaasahang mga sagot. Bumalik anumang oras. Maraming salamat sa paggamit ng Imhr.ca. Bumalik muli para sa karagdagang kaalaman mula sa aming mga eksperto.