Question 1- In a bizarre way to test the speed of a clay ball shot from...

Question 1-

In a bizarre way to test the speed of a clay ball shot from a slingshot, a wooden block is set up outside the lab on the concrete. The sticky clay ball has a mass of 10.0 g and is hurled perfectly horizontally by a man with his slingshot at a 90 g wooden block initially at rest on the concrete, a compete horizontal surface. The clay sticks to the block. After impact, the block slides 7.50 m before coming to rest. If the coefficient of friction between block and surface is 0.650, what was the speed of the clay (in m/s) immediately before impact?

m/s

Question 2-

In the sport of speed skating, the top athletes experience centripetal acceleration of approximately 0.65 g (meaning the centripetal force is about 65% of their weight). If the radius of the inner lane is about 22.6 meters, how fast are the skaters going?

m/s

Solutions

Expert Solution

genius_generous answered 2 months ago

Next > < Previous

Related Solutions

Question 56) PART 1) In the figure an electron is shot at an initial speed of...

Question 56) PART 1) In the figure an electron is shot at an initial speed of v0 = 4.62 × 106 m/s, at angle θ0 = 40.9 ˚ from an x axis. It moves through a uniform electric field = (5.40 N/C). A screen for detecting electrons is positioned parallel to the y axis, at distance x = 1.84 m. What is the y component of the electron's velocity (sign included) when the electron hits the screen? PART 2) In...

A 3.71 kg ball of clay is traveling straight north with a speed of 24.8 m/s,...

A 3.71 kg ball of clay is traveling straight north with a speed of 24.8 m/s, collides with a 3.65 kg ball of clay travelling strait east with a speed of 23.4 m/s. What is the speed of this new ball of clay after its collision? (I got 17.1 m/s) What direction is it traveling, given as a degree north of east?

A shot-putter throws the shot with an initial speed of 11.2 m/s from a height of...

A shot-putter throws the shot with an initial speed of 11.2 m/s from a height of 5.00 ft above the ground. What is the range of the shot if the launch angle is (a) 24.0 ∘ , (b) 30.0 ∘ , (c) 42.0 ∘ ?

A ball of clay with a mass of 4.0 kg, starting from rest, falls from a...

A ball of clay with a mass of 4.0 kg, starting from rest, falls from a height of 0.20 m above a block with mass 1.0 kg that rests on top of a spring with spring constant 90 N/m. The block then sticks to the block and the system undergoes simple harmonic motion. Please submit your answers to the following questions on a separate sheet of paper (or multiple sheets of paper). i. Write the formulas for the position, velocity,...

One billiard ball is shot east at 1.9m/s . A second, identical billiard ball is shot...

One billiard ball is shot east at 1.9m/s . A second, identical billiard ball is shot west at 0.90m/s . The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90? and sending it north at 1.31m/s . 1.)What is the speed of the first ball after the collision? 2.)What is the direction of the first ball after the collision? Give the direction as an angle south of east.

A billiard ball is shot east at 2.80 m/s. A second, identical billiard ball is shot...

A billiard ball is shot east at 2.80 m/s. A second, identical billiard ball is shot west at 1.20 m/s. The balls has a glancing collision, not a head-on-collision, deflecting the second ball by 90° and sending it north at 1.55 m/s. What is the angle that the velocity of the first ball makes after the collision, with respect to the east direction?

a high speed dart is shot from ground level with a speed of 140 m/s at...

a high speed dart is shot from ground level with a speed of 140 m/s at a angle 30 degrees above the horizontal. 1. What is the speed& direction of the dart after 6 sec if the air resistance is neglected. 2. How high above the projection point is the ball after 6 seconds? 3. What is the horizontal displacement of the dart at that instance.

A projectile is shot from the edge of a cliff at an initial speed of 5.0...

A projectile is shot from the edge of a cliff at an initial speed of 5.0 m/s at angle 30o with the horizontal. After 12 seconds, the projectile hits the ground below at some point P. (a) Determine the height of the cliff above ground level. (b) Determine the distance of the point P from the base of the vertical cliff. (c) At the instant just before the projectile hits point P, find the horizontal and the vertical components of...

A ball is shot up from a surface that is 20 m above the surface with...

A ball is shot up from a surface that is 20 m above the surface with an initial speed of 10 m/s. 1. What is the magnitude of the ball's displacement from the surface after 3.00 second has elapsed? 2. What max height will the ball reach from the surface of the earth? 3. How much time elapses between the throwing of the ball and its reaching to the earth? 4. Calculate the magnitude of the velocity of the ball...

From the castle wall 20m high shot an arrow. The initial speed of the bow is...

From the castle wall 20m high shot an arrow. The initial speed of the bow is 45 m/s directed 40 degrees above the horizontal. Find the initial velocity components. Find the maximum height of the arrow. Find the range. Find an arrow final velocity.

Subjects