Finding average force with out taking mass into account

AI Thread Summary
To find the work done on a .045kg ball that takes off at 41m/s, the kinetic energy formula can be applied, resulting in 38.145 Joules of work. The average force can be calculated using the work-energy principle, where the work done equals the force multiplied by the distance the ball moves while in contact with the club. By ignoring the mass of the ball, the average force can be derived from the work done divided by the distance of .010m. The discussion emphasizes using the relationship between work, force, and distance to solve the problem effectively. Understanding these principles allows for the calculation of average force without needing to factor in the mass directly.
xrotaryguy
Messages
20
Reaction score
0
If a .045kg ball takes off at 41m/s after being hit,

a.) How much work is done on the ball?

golfballwork.gif


b.) Assume that the force of the club acts parallel to the motion of the ball, and that the club is in contact with the ball for .010m. Ignore the mass of the ball and find the average force applied to the ball.

I don't know how to do this. I want to take the mass of the ball into account with the F=mv formula. What do I do?
 
Physics news on Phys.org
I think the question wants you to make use of the fact that the work done by a constant force is the product of that force and the distance moved in the direction of that force.
 
Excellent! That was exactly what I needed. Thanks!
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

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...
View full post »
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 »

Similar threads

Work done during a collision -- Change in Kinetic Energy & change in Momentum
Replies
1
Views
2K
Find the average force of a golf club on a golf ball
Replies
9
Views
6K
Momentum: instantaneous or average?
Replies
9
Views
1K
University Physics: Force Problem (Baseball and Pitcher)
Replies
5
Views
2K
Determine the force with which the magnetic field of a coil acts on an infinitesimal cube of iron
Replies
6
Views
960
Deriving the expression for average vertical force
Replies
18
Views
2K
Average force and angle, collision problem
Replies
23
Views
3K
Calculating average force - momentum problem
Replies
1
Views
2K
Calculating Theoretical Reaction Force of Ball Traveling in Semi-Circle
Replies
43
Views
4K
2D rigid body mechanics: force applied on sliding cart
Replies
14
Views
944

Hot Threads

Recent Insights

Back
Top