Consider the following physical situations. Identify whether the indicated force (in boldface type) does positive work, negative work or no work. a. Positive Work b. Negative Work c. No Work Description of Physical Situation +, -, or no Work a. A cable is attached to a bucket and the force of tension is used to pull the bucket out of a well. _______________ b. Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall. _______________ c. Near the end of the Shockwave ride, a braking system exerts an applied force upon the coaster car to bring it to a stop. _______________ d. The force of friction acts upon a baseball player as he slides into third base. _______________ e. A busy spider hangs motionless from a silk thread, supported by the tension in the thread. _______________ f. In baseball, the catcher exerts an abrupt applied force upon the ball to stop it in the catcher's mitt. _______________ g. In a physics lab, an applied force is exerted parallel to a plane inclined at 30-degrees in order to displace a cart up the incline. _______________ h. A pendulum bob swings from its highest position to its lowest position under the influence of the force of gravity. _______________
Consider the following physical situations. Identify whether the indicated force (in boldface type) does positive work, negative work or no work. a. Positive Work b. Negative Work c. No Work Description of Physical Situation +, -, or no Work a. A cable is attached to a bucket and the force of tension is used to pull the bucket out of a well. _______________ b. Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall. _______________ c. Near the end of the Shockwave ride, a braking system exerts an applied force upon the coaster car to bring it to a stop. _______________ d. The force of friction acts upon a baseball player as he slides into third base. _______________ e. A busy spider hangs motionless from a silk thread, supported by the tension in the thread. _______________ f. In baseball, the catcher exerts an abrupt applied force upon the ball to stop it in the catcher's mitt. _______________ g. In a physics lab, an applied force is exerted parallel to a plane inclined at 30-degrees in order to displace a cart up the incline. _______________ h. A pendulum bob swings from its highest position to its lowest position under the influence of the force of gravity. _______________
Consider the following physical situations. Identify whether the indicated force (in boldface type) does positive work, negative work or no work. a. Positive Work b. Negative Work c. No Work Description of Physical Situation +, -, or no Work a. A cable is attached to a bucket and the force of tension is used to pull the bucket out of a well. _______________ b. Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall. _______________ c. Near the end of the Shockwave ride, a braking system exerts an applied force upon the coaster car to bring it to a stop. _______________ d. The force of friction acts upon a baseball player as he slides into third base. _______________ e. A busy spider hangs motionless from a silk thread, supported by the tension in the thread. _______________ f. In baseball, the catcher exerts an abrupt applied force upon the ball to stop it in the catcher's mitt. _______________ g. In a physics lab, an applied force is exerted parallel to a plane inclined at 30-degrees in order to displace a cart up the incline. _______________ h. A pendulum bob swings from its highest position to its lowest position under the influence of the force of gravity. _______________
Consider the following physical situations. Identify whether the indicated force (in boldface type) does positive work, negative work or no work.
a. Positive Work
b. Negative Work
c. No Work
Description of Physical Situation
+, -, or no Work
a. A cable is attached to a bucket and the force of tension is used to pull the bucket out of a well.
_______________
b. Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall.
_______________
c. Near the end of the Shockwave ride, a braking system exerts an applied force upon the coaster car to bring it to a stop.
_______________
d. The force of friction acts upon a baseball player as he slides into third base.
_______________
e. A busy spider hangs motionless from a silk thread, supported by the tension in the thread.
_______________
f. In baseball, the catcher exerts an abrupt applied force upon the ball to stop it in the catcher's mitt.
_______________
g. In a physics lab, an applied force is exerted parallel to a plane inclined at 30-degrees in order to displace a cart up the incline.
_______________
h. A pendulum bob swings from its highest position to its lowest position under the influence of the force of gravity.
_______________
Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.
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