
1. a running back is tackled with a force of 4100N by a linebacker weighing 1000...
What is the acceleration of the dumbbell as a result of this
force
9. Quentin is lifting a 10 kg dumbbell by pulling upward on it with a 120 N force. What is the acceleration of the dumbbell as a result of this force, in [ms
Determine the work done by you in the following situations. A) Pulling horizontally with a force of 20 N on a 100 N sled. Sled moves 2 m at a constant velocity. (include units with answer) B) Pulling horizontally with a force of 40 N on a 100 N sled. Sled moves 2 m at a constant acceleration. (include units with answer) C) Pushing at 30° from horizontal with a force of 40 N on a 100 N sled. Sled...
1. The diagram provided shows a man pulling a box across the floor. Assume that the force of friction can be ignored, and that the acceleration of the box is 1.27 m/s?. Find the angle to the horizontal that the man must pull. 65 N 15 kg 2. ASS kg running back travelling at 6.3 m/s moves toward a 95 kg linebacker running at 4.2 m/s Which athlete has more kinetic energy? 3. A 2.00 kg mass is attached to...
You push a 100 kg couch with a force of 1000 N over a carpet that provides a frictional resistance. What is the net force if the acceleration of the couch is 4 m/s^2? a) 1000 N b) 600 N c) 400 N d) 250 N e) not enough info
1. The block which has a weight of 200 N and it is pulling at floor with the force of 100 N and attains a velocity of 14m/sec in a distance of 40 meters starting from rest. Compute the coefficient of Kinetic friction between the block and the floor. 2.An elevator weighting 22.2 KN moving downward with constant acceleration travels a distance of 30 m during the interval of time t= 0 to t=10s. Assuming the initial velocity is zero...
1. A 4-meter plank weighing 8 kg is lying on a dock with 2.71 meters of its length on the dock, and the rest of its length extending off the dock. If a child weighing 61.2 kg walks out onto the part of the plank extending off the dock, what is the maximum distance in meters that the child can walk on the plank from the edge of the dock before he falls into the water? 2. A man pulls...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
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...
1. A block with weight W = 30 N is on a flat horizontal surface. You pull to the right with a force F = 16 N. There is gravity present and the coefficient of friction is static = 0.4 and kinetic - 0.25. You are also pulling straight up with an applied force of 12 N. Now what are: The normal force N-_ the frictional force f- the net force on the block Foot and acceleration a = 2....
Question #1
Recall that weight is a force and
is equal to m*g, where g is the acceleration due to gravity exerted
by the Earth near the Earth's surface. The acceleration due to
gravity exerted by the moon near the moon's surface is 16.6% that
of Earth. What is the weight (in N) of a person with a mass of 63.6
kg on the moon?_____
Question #2
Using the pulley system below, if m1=3.5 kg and
m2 = 8.4 kg,...