Aceleration force mass question

[minhas510]

1.

1) Homework Statement

If a cow eating grass (at rest) and having a mass of 408.6 kg slides down a 10 meter slope in 1.5 seconds. What is the net force on the cow?

2) A net force of 450 N is applied to a .333 kg baseball, what is its acceleration?

Homework Equations

force = mass * acceleration

The Attempt at a Solution

No idea how to do number one! Is number two, 450=.333(acceleration) ?

Thanks

 

[PhanthomJay]

1.

1) Homework Statement

If a cow eating grass (at rest) and having a mass of 408.6 kg slides down a 10 meter slope in 1.5 seconds. What is the net force on the cow?

2) A net force of 450 N is applied to a .333 kg baseball, what is its acceleration?

Homework Equations

force = mass * acceleration

remember it's net force=mass*acceleration

The Attempt at a Solution

No idea how to do number one!

what's the acceleration of the cow using the kinematic equations? Then apply your relevant equation.

Is number two, 450=.333(acceleration) ?

Yes, solve for the acceleration, but don't forget to use the proper units; when the mass is in kg and the force is in N, then the acceleration has the units of_______?

 

[kerimek]

for your questions. I can provide some guidance on how to approach these problems.

1) To solve for the net force on the cow, we can use the formula F=ma, where F is the net force, m is the mass of the object, and a is the acceleration. In this case, the cow is initially at rest and slides down a slope, so we can assume that the acceleration is due to gravity, which is 9.8 m/s^2. We also know the mass of the cow is 408.6 kg. Plugging these values into the formula, we get: F=(408.6 kg)(9.8 m/s^2) = 4006.28 N. Therefore, the net force on the cow is approximately 4006 N.

2) For this problem, we can rearrange the formula F=ma to solve for acceleration. So, acceleration = F/m. Plugging in the values given, we get: acceleration = (450 N)/(.333 kg) = 1351.35 m/s^2. This means that the acceleration of the baseball is 1351.35 m/s^2.

I hope this helps and clarifies the concepts of force, mass, and acceleration. Remember, it's important to always use the correct units in these calculations (e.g. kg for mass, m/s^2 for acceleration, and N for force). Keep practicing and don't hesitate to ask for help when needed. Good luck with your studies!