Short questions: Q#1=a block with a mass of 20 kg is pulled by a horizontal force...
Short questions:
Q#1=a block with a mass of 20 kg is pulled by a horizontal force of 50 N while experiencing 10 N frictional force the acceleration of the block is?
Q#2 An iron ball is released from rest at top of a tower considering acceleration due to gravity 10 m/s^2. what will be its speed after 2 seconds
Q#3 You kick a football with 100N force. the reaction force from the ball to your foot is?
Q#4 a horse increases its velocity from 1m/s to 3m/s in 0.2 seconds. whats its acceleration?
Q#5 The weight of a 120kg person is about: a) 12N, b) 12000N, c) 120N, d)1200N??
q#6 two boys are pulling one cart. One applies a 60N force and the other applies a 20N force. what is the maximum net force they can produce?
Homework Answers
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Short questions:
Q#1=a block with a mass of 20 kg is pulled by a horizontal force...
Problem 3. (20 pts.) A block with mass (m=5.0 kg) is pulled with a force F-80...
Problem 3. (20 pts.) A block with mass (m=5.0 kg) is pulled with a force F-80 N at 30 degrees to the horizontal 5.0 kg a) Draw a free-body diagram. b) Find the normal force. c) If coefficient of friction between the crate and the surface is 4 = 0.4, what is the value of the frictional force, fa d) Find acceleration.
question 1 A block of mass m is pulled at constant velocity along a rough horizontal...
question 1 A block of mass m is pulled at constant velocity along a rough horizontal floor by an applied force � as shown. What is the magnitude of frictional force? Write your answer in terms of m, g, T, or q. question 2 An 8000-N car is traveling at 12 m/s along a horizontal road when the brakes are applied. The car skids to a stop in 4.0 s. How much kinetic energy does the car lose in this...
A small block of mass m1=4 kg is placed at rest on a larger block of mass m2=6kg. The coefficient of friction between the two block is ų=0.3. And the horizontal surface is smooth. A constant force F is applied on the block. The situation is given in the f
4. A small block of mass $m_{1}=4 k g$ is placed at rest on a larger block of mass $m_{2}=6 \mathrm{kg}$. The coefficient of friction between the two block is $\mu=0.3 .$ And the horizontal surface is smooth. A constant force $\mathrm{F}$ is applied on the block.
The situation is given in the figure below.
a. Find the value of limiting friction between the two blocks.
b. What is the maximum acceleration by which the upper block can move
c....
Block 1 (20 kg) is pulled by a rope from left to right up a ramp...
Block 1 (20 kg) is pulled by a rope from left to right up a ramp which is inclined 30 degrees from the horizontal. The rope pulls on block 1 with a force of 220 N parallel to the surface of the inclined plane. The coefficient of kinetic friction between the block and the surface equals 0.1. On a sheet of paper, draw the free body diagram for block 1 using the two-subscript notation from class. Assume that the x-axis...
1) A block of mass m = 0.52 kg is attached to a spring with force...
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
Problem 3. (20 pts.) A block with mass (m=5.0 kg) is pulled with a force F-80 N at 30 degrees to the horizontal 5.0 kg a) Draw a free-body diagram. b) Find the normal force. c) If coefficient of friction between the crate and the surface is 4 = 0.4, what is the value of the frictional force, fa d) Find acceleration.
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
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