Two otters slide down frictionless hillsides of the same height but different slopes. The slope of the hill of otter 1 is 30°, while the slope of otter 2 is 60°. If both start from rest, which otter is moving faster when she reaches the bottom of her hill?  A) otter 1 faster B) otter 2 faster C) the heavier otter is faster no matter which hill used D) the otter that took the shorter time is moving faster

Q: A block slides with constant velocity down an inclined plane that has a slope angle theta. The block…

A: (a) Since the block is sliding down with constant velocity. Therefore, the friction force along the…

Q: ame speed when they reach the ground. b. Both rocks have the same kinetic energy whe

A: Heavy rock and light rock are dropped from the same height and experience no significant air…

Q: Consider the system of two crates shown below, which are tethered to each other by a massless…

A: Solution: given that m1 = 35 kg m2 = 60 kg L = 22 m angle = 31.7 degrees coeff of kinetic friction =…

Q: Pool ball B is to be shot into the side pocket D by banking it off the cushion at C. Specify the…

A: a) When e=1, the situation is of reflecting from a mirror We have ∆BEC≡∆FEC≡∆FGD

Q: A boy shoves his stuffed toy zebra down a frictionless chute. It starts at a height of 1.11 m1.11 m…

A: According to the law of conservation of energy, states that sum of the potential energy and kinetic…

Q: A box starting from rest slides down from the top of a frictionless plane which is 3m long and…

A: Given: A box starting from rest slides down from the top of a frictionless plane as shown in figure…

Q: Problem 7: A block of mass m = 59 kg slides along a horizontal surface. The coefficient of friction…

A:

Q: A 6.5 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

A: M=6.5kg, T=14N , angle is 36°, u= 0.07

Q: A block is projected up a frictionless inclined plane with initial speed vo = 1.54 m/s. The angle of…

A:

Q: Two blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes…

A:

Q: A 14.5 g bullet is moving to the right with speed 300 m/s when it hits a target and travels an…

A: The acceleration of the bullet is

Q: Draw a free-body diagram for a 1.0 kg ball that is: a. Dropped b. Thrown horizontally with a speed…

A: x component of a vector A̅ = A Cosθ  y component of a vector A̅ = A Cosθ

Q: A block of mass m = 2.00 kg is released from rest at h = 0.500 m above the surface of a table, at…

A: Given that, Mass = 2.00 kg Height from the surface of the table h = 0.500 m Height of the table =…

Q: A 50 m B_ 4 m 30° The skier with a total mass of 70 kg started his movement at point A with zero…

A:

Q: A box is initially at rest on a frictionless surface. It then experiences two forces, as shown in…

A: Free body diagram of box Here, W = WeightN = Normal force

Q: A skier starts from rest on the 41° slope at time t = 0 and is clocked at t = 2.70 s as he passes a…

A:

Q: C. forward D. upward 8. How distance between two objects affects the pull of gravity? A. The lesser…

A: To determine: The correct option.

Q: B. Both Rian and Lim threw a rock with the same shape and mass from a 60 m tall building to the…

A: Given data: The height of the building, h=60 m. The initial velocity of throw of Lim's rock, uR=17…

Q: (a) Use dynamics and kinematics to determine the speed of the blocks after little m has fallen 0.25…

A: Given :    Mass of block-1, M = 5.7 kg    Mass of block-2, m = 6 kg     Angle of inclination, θ =…

Q: In a laboratory model of cars skidding to a stop, data is collected on blocks sliding across a table…

A: Given:-  mass of each block =7Kg Block 1 :- Uk  = 0.2  ; vi = 2m/s Uk  = 0.2  ; vi = 4m/s Uk  = 0.4…

Q: A 41 kg skier skis directly down a frictionless slope angled at 12° to the horizontal. Choose the…

A: Given : mass of skier, m = 41 kg              angle of inclination of hill, θ = 12°

Q: Explain why   a) a horse cannot pull a cart and run in empty space,   b) passengers are thrown…

A: a) In order to pull a cart, a horse pushes the ground backward with some force. The ground  in turn…

Q: In a world without friction, which of the following activities could you do (or not do)? Explain…

A: (a) The unbanked turns at a highway are risky for speeding vehicles as the vehicles with certain…

Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0.The…

A:

Q: A skater with an initial speed of 6.80 m/s stops propelling himself and begins to coast across the…

A: initial velocity (u) = 6.80 m/sFinal velocity (v) = 0 m/s Coefficient of kinetic friction (μk) =…

Q: A batter hits a baseball m = 0.49 kg from rest with a force of F = 87 N, The ball is in contact with…

A:

Q: A skater with an initial speed of 7.13 m/s stops propelling himself and begins to coast across the…

A: Given:  initial velocity,  u = 7.13 m/s final velocity, v =  0  coefficient of friction = 0.105

Q: A block is released from rest at point P and slides along the frictionless track shown. At point Q,…

A: Given:Object is placed at height (on point P) = h1.Secondary height of object (on point Q) = h2.Let…

Q: The following information pertains to questions 1, 2, and 3. A workman pulls a sled across an…

A:

Q: he catapult hurls a stone of mass 32.0 g with a velocity of 50.0 m/s at a 30.0 angle of elevation.…

A: Given: Mass of the stone, m = 32.0 g = 0.032 kg. Velocity of the stone, u = 50 m/s. Angle of…

Q: Suppose that the block now moves across the surface with constant speed under the action of a…

A: Given: The applied force is 3 N. The speed of the object is constant.

Q: Assuming the locust jumps straight up, and ignoring air resistance, what is the takeoff speed of the…

A:

Q: A rocket-powered hockey puck moves on a horizontal frictionless table. The figure below shows the…

A: The horizontal and vertical component of the velocity of puck moving on a horizontal frictionless…

Q: Tanya is at rest on a stationary raft. She jumps off the raft with an acceleration of 2.85m/s^2 [W].…

A:

Q: VIUW Avaliauie nia) A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 32 °…

A: Mass , m = 2 kg Angle ,  θ = 32° Initial speed , Vi = 14 m/s coefficient of kinetic friction , μk =…

Q: with an initial speed of 8.10 m/s stops propelling himself and begins to coast across the ice,…

A:

Q: 2 Macoy walked towards Len-Len's house with a displacement of 100 meters 40° N of W. Which of the…

A:

Q: A lazy fish sees your fishing hook. The fish is initially located at position (3 m , –2 m) and…

A: Given,

Q: A woman at an airport is rolling her suitcase (mass = 20 kg) at an initial velocity of 1 m/s by…

A:

Q: e for a 0.25 kg stone to hit t

A: Given values:- Mass of stone,(m)=0.25 kg ------(1) Height of fall,(s)=60 m -----(2) Initial velocity…

Q: 1. The blocks A and B are connected by a cable that runs around two pulleys of negligible mass, as…

A:

Q: An action figure is placed on a toy car, which is initially at rest. Then the action figure moves…

A: Basic Details The total amount of work done on the action figure that moves through 4 time intervals…

Q: A pitcher throws a baseball with mass 0.2 kg straight upward with an initial speed of 20.0 m/s.…

A: Given, Mass of baseball, m=0.2 kg Initial speed,u=20 m/s Height,h=15 m

Q: Time left 0:21:4 A block is given an initial velocity of 12 m/s up a frictionless incline of angle…

A: Answer:- (d) 12 m  Given  Initial velocity (u) = 12 m/s  Final Velocity (V) = 0  Angle (A) = 370  We…

Q: During launches, rockets often discard unneeded parts. A certain rocket starts from rest on the…

A: (a)The initial velocity of the rocket is zero.The velocity of the rocket at the time of…

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.