1 a uniform rod of length 4 m and of weight 5 n is, Ask an Expert

Academics

1. A uniform rod of length 4 m and of weight 5 N is supported at its extreme right end by a fulcrum as shown. A block of weight W = 10 N is sitting 1 m from the fulcrum. An upward force F is applied at the extreme left end.
What is the force F needed to keep the system in static equilibrium?
(b) 40 N
(c) 5 N
(d) 2.5 N
(e) 7.5 N

2. Now suppose that the fulcrum is moved directly under the block. Compared to your previous answer, the force needed to keep the system in static equilibrium will be
(a) greater.
(b) less.
(c) the same.

3. What is the angular velocity of the second hand of a clock?
(a) 0.105 rad/s
(b) 22.7 rad/s
(c) 360 rad/s

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91708195

Have any Question?Write your Review or question?

Related Questions in Physics

Question a what is the potential difference vadnbspin

Question: a) What is the potential difference V ad in thecircuit? b) What is the terminal voltage of the 4V battery? c) A battery with emf 10.3V and internal resistance .5ohm isinserted in the circuit d with its negativ ...

Quesiton you stand at the top of a deep well to determine

Quesiton: You stand at the top of a deep well. To determine the depth (D) of the well you drop a rock from the top of the well and listen for the splash as the water hits the waterâ€ TM s surface. The splash arrives t = ...

Question a sensitive gravimeter at a mountain observatory

Question: A sensitive gravimeter at a mountain observatory finds that the free fall acceleration is 0.0075 m/s^2 less than that at sea level. What is the observatory's altitude? The response must be typed, single spaced, ...

Question an outfielder throws a 0150 kg baseball at a speed

Question: An outfielder throws a 0.150 kg baseball at a speed of 40.0m/s at an intial angle of 30.0 with respect to the horizontal. a) what is the kinetic energy of the baseball at the highest point of its motion? b) wha ...

Question the radius of the earths very nearly circular

Question: The radius of the earth's very nearly circular orbit around the sunis 1.5 x 10^11 m. Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days. Express your answer using ...

Question the position of a particle moving along an x axis

Question: The position of a particle moving along an x axis is given by x = 14.0t2 - 3.00t3, where x is in meters and t is in seconds. Determine (a) the position, (b) the velocity, and (c) the acceleration of the particl ...

Question tarzan in one tree sights jane in another tree he

Question: Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 20 m that makes an angle of 45 degrees with the vertical, steps off his tree limb, and swings down and then up to Jane's ...

Need help answering this question the ancient egyptians

Need help answering this question The ancient Egyptians used simple machines to build the pyramids. Discuss how you might use one or more of the simple machines to move the massive stone blocks up the growing pyramid, an ...

Question a point charge of magnitude q is at the center of

question: A point charge of magnitude q is at the center of a cube with sides of length L. Part A: What is the electric flux ? through each of the six faces of the cube? Use 0 for the permittivity of free space. and Part ...

A ski jumper leaves the ski track moving in the horizontal

A ski jumper leaves the ski track moving in the horizontal direction with a speed of 15.0 m/s. The landing incline below her falls off with a slope of 45.0 degrees. Where does she land on the incline?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert