Estimate the moment of inertia of the arm and ball

Reference no: EM13547760

A catapult with a radial arm 4.02 m long accelerates a ball of mass 20.5 kg through a quarter circle. The ball leaves the apparatus at 42.6 m/s. The mass of the arm is 26.1 kg and the acceleration is constant. Hint: Use the time-independent rotational kinematics equation to find the angular acceleration, rather than the angular velocity equation.

(a) Find the angular acceleration.

rad/s2

(b) Find the moment of inertia of the arm and ball.

kg · m2

N · m

Reference no: EM13547760

Questions Cloud

Why is it so difficult for congress to put the interest : Why is it so difficult for Congress to put the interest of the public above special interests? What strategies can members use to overcome these difficulties?

Evaluate the average power of the elevator motor : A 500 kg elevator starts from rest. It moves upward for 2.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period

How many plates are needed : In order to comply with regulations, an iron/steel sinter plant installs an electrostatic precipitator (ESP) to collect 98% of the 10 ?m particles from an air stream flowing at 2 m3/s

What are the major problems of latin america : What are the major problems of Latin America?

Estimate the moment of inertia of the arm and ball : A catapult with a radial arm 4.02 m long accelerates a ball of mass 20.5 kg through a quarter circle. The ball leaves the apparatus at 42.6 m/s. Find the moment of inertia of the arm and ball

Identify the players : From reading the paper, watching TV, browsing the Web, or interacting with friends, family or co-workers, identify a real life example of the types of "games" which are referred to in our text. What type of game does your example represent? Wh..

Develop the dimensionless groups that are relevant for this : Develop the dimensionless groups that are relevant for this problem using pipe diameter, pressure drop, and viscosity as the repeating variables. Show that there is a problem with eliminating the remaining variables when using the procedure outlined ..

Through what angle does it rotate in coming to rest : A drum rotates around its central axis at an angular velocity of 19.5 rad/s. If the drum then slows at a constant rate of 5.35 rad/s2, (a) how much time does it take and (b) through what angle does it rotate in coming to rest?

What was the initial speed of the bullet : A 5-g bullet is fired into a 1.4-kg block that is resting on a frictionless surface and is attached to a spring with spring constant 312 N/m. After impact, the block with the embedded bullet slides 8 cm across the table, compressing the spring, b..

User Account

All Pages