Solution,
Net force, Fnet = 20 - 18 = 2 Newton (upward)
Comment in case any doubt please rate my answer.....
What is the net force on a bag pulled down by gravity with a force of...
a) what was the acceleration of the block down the ramp before
the rope is pulled?
b) what was the acceleration of the block down the ramp after
the rope is pulled?
A4 kg block is released from rest at the top of a frictionless plane of length 9m that is inclined at an angle of 21 degrees to the horizontal Acord is attached to the block and trails along behind it. When the block reaches a point 3 m...
A block is pulled along a rough horizontal surface by force of
magnitude 100 Newtons, at an angle of 30 degrees as shown. The
block has a mass M=20.0 kg, and the coefficient of kinetic friction
between the block and the surface is 0.50.
a)The horizontal component of the tension, T, is
b)The normal force exerted upward by the floor on the block has
a magnitude of
c)If the block moves 10.0 m to the right, the work done by...
What total force will cause an object with a mass of 1kg to gain 10 meters per second every second? O A 1 Newton. B 9.8 Newtons. O C5 Newtons c s O D 1O Newtons. OE 2.5 Newtons. If you are told that an object that weighs 20 Newtons is raised a distance of 10 meters, you know that. O A the force of gravity on the object is 20 Newtons. O B the mass of the object is...
A 5kg box is being pulled up an inclined 20 degree slope, the coefficient of kinetic friction is 0.3. It is being pulled by a rope that experts a 20N force and that force makes an angle of 30 degree upward with respect to that slope. Calculate the acceleration of the box
A 45 kg cart is pulled along by a rope that applies a 120 N force at 30 degree. How much work is done by the 120 N force as the cart moves 7 m? If the friction force on the cart is 50 N, how much work is done by the friction force? How much work is done by gravity? What is the net work done on the cart? If the initial speed of the cart was 5 m/s,...
In earlier days, horses pulled barges down canals in the manner
shown below. Suppose that the horse pulls on the rope with a force
of 7900 N at an angle of 18° to the direction of motion of the
barge, which is headed straight along the positive direction of an
x axis. The mass of the barge is 9100 kg, and its acceleration is
0.10 m/s2. What are the magnitude and the direction of the force on
the barge from...
why is III incorrect?
69. A woman stands in an elevator. The force of gravity exerted on the woman by the Earth is 500 newtons. If the elevator is accelerating upward, which of the following forces would have a magnitude of 500 newtons? 1. The force exerted on the Earth by the woman Il. The force exerted on the woman by the floor of the elevator ll. The force exerted on the floor of the elevator by the woman (A)...
18) 2 block are connected to each other by a string and pulled with a force of 100N Block B is 5Kg and block A is 2 kg. There is no friction block B block A string 2 string A) What is the acceleration of the blocks (the whole system A and B)? B) what is the force acting on block B from block A (pulling force) ? So consider only block B now. (in a bag) C) What is...
3.) A 60.0 kg box is pulled by a 275 N force of tension provided by a rope pulled at an angle 30.0 degrees above the horizontal. The box moves 25.0 m horizontally as it is pulled by the rope. The coefficient of friction between the box and the ground is uk-0.20 a.) How much work does the rope do on the box? (5 pts) b.) How much work does friction do on the box? (5 pts) c.) How much...
To understand the concept of tension and the relationship
between tension and force. This problem introduces the concept of
tension. The example is a rope, oriented vertically, that is being
pulled from both ends. (Figure 1) Let Fu and Fd (with u for up and
d for down) represent the magnitude of the forces acting on the top
and bottom of the rope, respectively. Assume that the rope is
massless, so that its weight is negligible compared with the
tension....