How High is the Table in This Projectile Motion Problem?

  • Thread starter Thread starter westmarch
  • Start date Start date
  • Tags Tags
    Homework
AI Thread Summary
To determine the height of the table in the projectile motion problem, the horizontal distance of 0.51 m and the horizontal velocity of 1.2 m/s can be used to calculate the time it takes for the marble to hit the cup. Using the time of flight, the height can then be found using the kinematic equations for vertical motion. A diagram can help visualize the problem and clarify known variables. The discussion emphasizes the importance of understanding kinematic equations for solving projectile motion problems. Assistance is sought to catch up on homework after an absence due to illness.
westmarch
Messages
1
Reaction score
0
Homework Help, Please...

Homework Statement



Projectile Motion Problem solving, The problem is:
Melanie rolls a 10-g marble down a ramp and off the table with a horizontal velocity of 1.2m/s. The marble falls in a cup placed 0.51 m from the table's edge. How high is the table?

Homework Equations



n/a since i was absent for about a week due to sickness, I need somebody that would please help me with these problems i got about 11 of them i'd repay you back somehow, I need to get caught up.

The Attempt at a Solution

 
Physics news on Phys.org
Do you have any ideas on where to start? I would start by drawing a diagram and labelling the things you know. Do you have your kinematic equations in front of you?
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
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}...
Back
Top