What is the velocity of a 178 gram object thrown 97 meters?

  • Thread starter Thread starter Sevenzzz
  • Start date Start date
  • Tags Tags
    Velocity
AI Thread Summary
To determine the velocity of a 178 gram object thrown 97 meters, additional information is required, such as the time taken for the throw and the angle of release. Velocity is a vector quantity that includes both speed and direction, making it essential to clarify whether the inquiry is about initial or final velocity. The acceleration due to gravity is 9.8 m/s², but without knowing the vertical displacement or the duration of the throw, calculating an exact velocity is not feasible. If the ball is thrown horizontally, the initial vertical velocity is zero, but this does not provide enough data to ascertain the final vertical velocity. Overall, more specifics are needed to accurately calculate the object's velocity.
Sevenzzz
Messages
1
Reaction score
0
What is the velocity of a 178 gram object (softball, 11inch diameter) thrown 97 meters. Can anyone help?
 
Physics news on Phys.org
Velocity is vector (magnitude [speed] and direction). I assume you want the speed.
To find speed you need to know the distance traveled over time (least for average speed). Unless you are figuring out force, you don't need mass. So give me a time and I'll give you an average horizontal speed. If you truly want to find VeLoCiTy you need to know a lot more like change in y displacement and an angle and how you threw the ball.
 
i think its much easier than tht..but my question is which velocity do you want to find: the initial or the final velocity?
 
i am guessing it is the final velocity. so the initial velocity will be zero since the object is thrown. The acceleration is 9.8m/sq. sec. And we know the distance. So using the formula V^2- u^2=2as. hence we can find the final velocity. Its best you check with some expert.
 
I don't think we can determine the actual velocity based on the information given. I believe you can only have an initial vertical velocity is zero if: the ball is thrown horizontally, or the ball is dropped from somewhere, or you are told it is zero. So, if we assume the ball is thrown horizontally, we still cannot determine the final vertical velocity as we do not know either how far vertically it moved, or for how long it was in the air.

As to horizontal velocity, there doesn't seem to be enough information to get an actual velocity. With all the unknowns, I think we can make a formula, but not determine the value.

Perhaps one of the experts has the key.
 
Sevenzzz said:
What is the velocity of a 178 gram object (softball, 11inch diameter) thrown 97 meters. Can anyone help?
Need more information.

If on earth, the local acceleration of gravity, g = 9.8 m/s2.

Is ball thrown vertically or horizontally or at some angle with respect to horizontal?
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Thread 'Egg Drop Challenge! Need ideas for winning designs'

I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
View full post »

Similar threads

Terminal Velocity: Solve Physics IA Problem
Replies
5
Views
2K
Egg tossing crime -- From what location was the egg thrown?
Replies
14
Views
3K
How to Calculate Force and Velocity for a 20g Projectile at 15 Meters?
Replies
5
Views
1K
Projectile motion -- throwing an object vertically
Replies
18
Views
2K
Find Velocity: Help Solve Ball Problem
Replies
12
Views
1K
Calculate Distance Traveled: Instantaneous vs. Average Velocity
Replies
5
Views
2K
Relation between Friction, Velocity, and Acceleration
Replies
16
Views
978
Coriolis force and the Earth's rotation
Replies
18
Views
3K
What is wrong with our assumptions?
Replies
2
Views
1K
The speed which a ball must be thrown to reach 8m.
Replies
12
Views
2K

Hot Threads

Recent Insights

Back
Top