How fast is he propelled in the opposite direction

Assignment Help Physics

Reference no: EM13320150

A 40 kg skateboarder (Ms) on a 3 kg board (Mb) is training with two 5 kg weights (Mw). Beginning at rest (with respect to the ground) he throws the weights together horizontally form the board. The velocity of each weight is 7 m/s relative to him and the board after they are thrown. Assume that the board rolls without friction. Assume the positive x direction is to the right.

A) what is the initial momentum? Why?

B) What is the velocity of the weights with respect to the ground if his velocity after throwing them is Vr (with respect to the ground). Just write it down.

C) Write out the final momentum of Ms, Mb, Mw, and Vf.

D) How fast is he propelled in the opposite direction after the weights are thrown?

Reference no: EM13320150

Questions Cloud

Design a line of sweaters : You have decided to design a line of sweaters

Calculate required compressive strength for a concrete mix : Calculate the required compressive strength for a concrete mix design if F'c = 5000 psi and data indicate a standard deviation of 600 psi based on 15 tests for a similar concrete mix

Find the angular acceleration of the stick : A uniform thin disk (I=1/3ML^2) of length L and mass M is pivoted at one end. It is held horizontal and released. Find the angular acceleration of the stick immeidately after it is released

Topic is how technology is used in the marketing : Topic is how technology is used in the marketing and advertising in cruise ship holidays

How fast is he propelled in the opposite direction : A 40 kg skateboarder (Ms) on a 3 kg board (Mb) is training with two 5 kg weights (Mw). How fast is he propelled in the opposite direction after the weights are thrown

What is the forecast of the theoretical relational test : You have batched both of the mixes you designed in questions 6 and 7 on the same day and have made a sufficient number of 6" diameter and 4" diameter cylinders of each mix so that two cylinders of each size

What average force does the ground exert on the flea : High-speed photos of a 200%u03BCg flea jumping vertically show that the jump lasts 1.5ms, What average force does the ground exert on the flea during its jump

Obtain primary data from social media customers : Explain how you will obtain primary data from social media customers, where the customers are the university of Baltimore graduate students, alumni, donor, employees etc.

Calculate the maximum bending stress on each side : A square steel bar, 38 mm on each side, is used as a beam and subjected to bending of 460 N.m. Calculate the maximum bending stress.

User Account

All Pages