A 7.80 g bullet is initially moving at 560 m/s just before it penetrates a block of solid rubber to a depth of 4.70 cm. (a) What is the magnitude of the average frictional force (in N) that is exerted on the bullet while it is moving through the block of solid rubber? Use work and energy considerations to obtain your answer.   (b) Assuming the frictional force is constant, how much time (in s) elapses between the moment the bullet enters the block of solid rubber and the moment it stops moving?

Q: A 7.80-g bullet moving at 520 m/s penetrates a tree trunk to a depth of 5.30 cm. (a) Use work and…

A: a)Write the mathematical expression for work energy theorem.

Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

Q: 1. For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m…

A:

Q: You have your textbook and pen with you while working on this exam. Assume the height of your…

A: Given Data : The height of the desk is given as H = 1m. The mass of the book is given as mb. The…

Q: A 7.80-g bullet moving at 690 m/s penetrates a tree trunk to a depth of 6.20 cm. (a) Use work and…

A: Mass of bullet (mb)=7.8 g Initial speed of the bullet (u)=690 m/s Penetration in trunk (d)=6.2 cm

Q: An 8.0 kg sled is initially at rest on a horizontal road. The coefficient of kinetic friction…

A:

Q: A 7.80 g bullet is initially moving at 470 m/s just before it penetrates a tree trunk to a depth of…

A: Given Data: The mass of the bullet is, m = 7.80 g. The initial velocity is, v = 470 m/s. The…

Q: A 7.80 g bullet is initially moving at 530 m/s just before it penetrates a block of solid rubber to…

A: Given data:Mass of the bullet (m) = 7.8 gInitially moving (v) = 530 m/sDepth of penetration (d) =…

Q: A 500 kg hot air balloon experiences an upward lift force Flift over an interval t = 20.0 s. As a…

A:

Q: A 400 N student pushes a 500N trunk a distance of 8.00 m along a straight line, by applying a…

A: Solution:-Given thatWeight of trunk (W)=500 NDisplacement (d)=8 mApplied force (F)=600 Ninitial…

Q: At an orange juice plant, orange juice pulp with a density of 1.25 g/ml passes through a pumping…

A: Output mechanical power

Q: A 7.80-g bullet moving at 650 m/s penetrates a tree trunk to a depth of 6.50 cm. (a) Use work and…

A: Given: The velocity of the bullet is v=650 m/s, The depth bullet penetrates is d=6.50 cm, The mass…

Q: A 63.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.6 m/s.…

A: The objective of this question is to find the maximum height the athlete attains and her speed at…

Q: A 19.8 kg block is dragged over a rough, horizontal surface by a constant force of 183 N acting at…

A: Work done by the frictional force is,

Q: A 7.80-g bullet moving at 660 m/s penetrates a tree trunk to a depth of 5.80 cm. (a) Use work and…

A:

Q: A car drives along the highway, maintaining a constant speed of 29 m/s. For all questions below,…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A box is given a push across a horizontal surface. The box has a mass m, the push gives it an…

A: Given value--- initial speed ( u ) = vi . coefficient of kinetic friction = muk . final speed ( v )…

Q: A 58.6-kg box is being pushed a distance of 7.05 m across the floor by a force P whose magnitude is…

A:

Q: Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it…

A: Given data:  Volume (V) = 7500 L = 7.5 m3  Time taken (t) = 1 day Height (h) = 1.6 m Density of…

Q: A 7.80-g bullet moving at 620 m/s penetrates a tree trunk to a depth of 5.40 cm. (a) Use work and…

A: Given data The mass of the bullet is m = 7.80 g = 0.0078 kg The initial velocity of the bullet is: u…

Q: A particle of mass m moves along the x axis. Its position varies with time according to x = in…

A:

Q: A 5.40-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and…

A:

Q: A 36.0 kg box initially at rest is pushed 5.45 m along a rough, horizontal floor with a constant…

A: Given values: Mass, m=36.0 kg Applied force, F=150 N Coefficient of friction, μ=0.300 Distance,…

Q: This is one question with two parts The force required to stretch a Hooke’s-law spring varies from…

A: Hooke's Law  F = -k x  where F is force. k is force constant  x is displacement.

Q: A box slides down a plank of length d that makes an angle of θ with the horizontal as shown. μk is…

A:

Q: A 325 N force is pulling on an 85.0 kg refrigerator as it slides across a horizontal floor. The…

A: Step 1: Step 2: Step 3:

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Given data: Mass (m) = 73.5 kg Initial velocity (v0) = 5.2 m/s Final velocity (v) = 12.2 m/s…

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Given :- mass of water skier = 61.2 kg initial velocity = 5.1m/s speed increases to 12.1 m/s

Q: A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth of 4.50 cm.  (a) Use work and…

A: (a).According to the work energy theorem, the net work done is equal to the change in kinetic energy