ITUATION: The 5kg block passes over B at a velocity of 4.20 m/s.B40°R=2.8mCalculate the normal force at B, Newtons.а. 17.55C.76.34b. 27.30d. 80.55Determine the speed at A without losing contact with the path (Normal force = 0), meters per seconds.а.4.59C.3.42b. 6.30d.7.25

Given: Mass of the block m = 5 kg Radius R =2.8 m Velocity v = 4.20 m/s

Calculate the normal force at B, Newtons. c. 76.34 d. 80.55 а. 17.55 b. 27.30 Determine the speed at A without losing contact with the path (Normal force = 0), meters per seconds. с. 3.42 d. 7.25 a. 4.59 b. 6.30

Calculate the normal force at B, Newtons. c. 76.34 d. 80.55 а. 17.55 b. 27.30 Determine the speed at A without losing contact with the path (Normal force = 0), meters per seconds. с. 3.42 d. 7.25 a. 4.59 b. 6.30

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 41PQ: If a spacecraft is launched from the Moon at the escape speed of the Earth, how fast will the...

See similar textbooks

Related questions

Q: 1. What was the initial speed of a ball thrown upwards (close to the surface of the earth) if it…

A: The kinematic equation of motion is given by Where v = Final speed, u = Initial speed, =…

Q: 2. 50 Force (Newtons) Force exerted on tennis ball 000 250 000 150 100 Gean enimete 11 4. 6. Time…

A: As per guidelines, only 3 subparts are solved here. a) The unit of area under the curve is Newton…

Q: 42. John is moving a 14 kg box in a Phsyics lab on an approximately frictionless surface. If the box…

Q: A particle moves in the xy-plane so that its velocity vector for time 0 <<10 is (√36-61, 4t). Which…

Q: 9. The top graphs show the x-component of Ĕ as a function of x in two different cases. On the axes…

A: Step 1:Electric potential is 0Vat x=0mStep 2:We know that the relation between the electric…

Q: 20. A ball is thrown vertically upward at 20 m/s from a height of 30 m above the ground. What is its…

A: Given: The intial velocity of the object is 20 m/s. The height of the object from the ground is 30…

Q: A crate slides down an inclined plane without friction. If it is released from rest and reaches a…

A: Given: The initial velocity (u) of the crate is 0 m/s. The final velocity (v) of the crate is 6 m/s.…

Q: A 221-gram ball is thrown at an angle of 17.9 degrees and a speed of 36.7 m/s from the top of a…

Q: Starting from oxy (0,0), a ball is thrown off the Palisades Cliffs with velocity v. making an…

Q: Your answer is partially correct. Try again. A semi-trailer is coasting downhill along a mountain…

Q: I need help with this problem please A catapult launches a rock at a 41° angle with respect to the…

A: Write the given data θ=41° w.r.t horizontallet the speed of velocity be uwhere u=25 m/s,Hmax=maximum…

Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

ITUATION: The 5kg block passes over B at a velocity of 4.20 m/s.
B
40°
R=2.8m
Calculate the normal force at B, Newtons.
а. 17.55
C.
76.34
b. 27.30
d. 80.55
Determine the speed at A without losing contact with the path (Normal force = 0), meters per seconds.
а.
4.59
C.
3.42
b. 6.30
d.
7.25

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A man unloads a 5.0-kg box from a moving van by giving it an initial speed of 1.3 m/s down a ramp that makes an angle of 20 with the horizontal. It slides with negligible friction for 2.7 m along the ramp before reaching the mans helper. What is the speed of the box as the helper catches it?
(a) How fast must a 3000-kg elephant move to have the same kinetic energy as a 65.0-kg sprinter running at 10.0 m/s? (b) Discuss how the larger energies needed for the movement of larger animals would relate to metabolic rates.
In a laboratory experiment, an electron with a kinetic energy of 50.5 keV is shot toward another electron initially at rest (Fig. P11.50). (1 eV = 1.602 1019 J) The collision is elastic. The initially moving electron is deflected by the collision. a. Is it possible for the initially stationary electron to remain at rest after the collision? Explain. b. The initially moving electron is detected at an angle of 40.0 from its original path. What is the speed of each electron after the collision? FIGURE P11.50
A 5.0-g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.82-m-long barrel of the rifle?
A system consists of three particles, each of mass 5.00 g, located at the corners of an equilateral triangle with sides of 30.0 cm. (a) Calculate the gravitational potential energy of the system. (b) Assume the particles are released simultaneously. Describe the subsequent motion of each. Will any collisions take place? Explain.
Integrated Concepts (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2 against a 200-N frictional force, if the mass of the loaded elevator is 1500 kg? (b) How much work is done by the cable in lifting the elevator 20.0 m? (c) What is the final speed of the elevator if it starts from rest? (d) How much work went into thermal energy?
An 80.0-kg skydiver jumps out of a balloon at an altitude of 1.00 103 m and opens the parachute at an altitude of 200.0 m. (a) Assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3.60 103 N with the parachute open, what is the speed of the diver when he lands on the ground? (b) Do you think the skydiver will get hurt? Explain. (c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 5.00 m/s? (d) How realistic is the assumption that the total retarding force is constant? Explain.
A suspicious physics student watches a stunt performed at an ice show. In the stunt, a performer shoots an arrow into a bale of hay (Fig. P11.24). Another performer rides on the bale of hay like a cowboy. After the arrow enters the bale, the balearrow system slides roughly 5 m along the ice. Estimate the initial speed of the arrow. Is there a trick to this stunt? FIGURE P11.24
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at 40.0 m/s in the opposite direction. (a) What is the impulse delivered to the ball by the tennis racquet? (b) What work does the racquet do on the ball?
(a) Can the kinetic energy of a system be negative? (b) Can the gravitational potential energy of a system be negative? Explain.
A shopper weighs 3.00 kg of apples on a supermarket scale whose spring obeys Hookes law and notes that the spring stretches a distance of 3.00 cm. a. What will the springs extension be if 5.00 kg of oranges are weighed instead? b. What is the total amount of work that the shopper must do to stretch this spring a total distance of 7.00 cm beyond its relaxed position?
(a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp equals 746 W) to reach a speed of 15.0 m/s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m high hill in the process?