(Answered) 1 a weight of 30lb rests on an inclined plane 3 ft high and

Academics

1. A weight of 30lb rests on an inclined plane 3 ft high and 5 ft long. a force F making an angle of 30° with the plane pulls the body upward. If the coefficient of friction is 0.20, how much force is necessary to maintain uniform motion upward?

2. A board is 8 ft long. how high will one end be raised so that a block on it will just begin to slide down if the coefficient of friction is 0.30?

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91629956
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Physics

Question at t0 a grinding wheel has an angular velocity of

Question: At t=0 a grinding wheel has an angular velocity of 30.0rad/s . It has a constant angular acceleration of 27.0rad/s^2 until a circuit breaker trips at time t = 1.60s . From then on, it turns through an angle 433 ...

An object falls because of gravity at a rate of -980 cms2 -

An object falls because of gravity at a rate of -980 cm/s2 (- sign is indicative of a downward direction) for 10. seconds. If it starts from rest (vo = 0) and its position starts from do= 0.0, where is it 10. seconds lat ...

Question part a find the energy u0 stored in the capacitor

Question: Part A: Find the energy U0 stored in the capacitor. Express your answer in terms of A, d, V, and Ïµ0. Remember to enter Ïµ0 as epsilon_0. Part B: The capacitor is now disconnected from the battery, and the plat ...

Question a proton with an initial speed of 800000 ms is

Question: A proton with an initial speed of 800000 m/s is brought to rest by an electric field. Part A- Did the proton move into a region of higher potential or lower potential? Part B - What was the potential difference ...

Question the radius of the earths very nearly circular

Question: The radius of the earth's very nearly circular orbit around the sun is 1.5x10^11m. Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days. Find the magnitude of the e ...

The equation for motion for the ideal spring-mass system

The equation for motion for the ideal spring-mass system as derived in class is, ma+kx=0, where, m=mass, a=acceleration, k=spring stiffness, and x=displacement. 1) Describe briefly how the equation for motion arises from ...

Question tectonic plates are large segments of the earths

Question: Tectonic plates are large segments of the earths crust that move slowly. suppose that one such plates has an average speed of v=2.1 cm/ year. a) What distace d, in meters, does the plate move 1.4 seconds at thi ...

Problem a jet airplane with a 750 m wingspan is flying at

Problem: A jet airplane with a 75.0 m wingspan is flying at 265 m/s. Part (a) What emf is induced between the wing tips in V if the vertical component of the Earth. The response must be typed, single spaced, must be in t ...

Question a pendulum has a period of 177 s on earthpart a

Question: A pendulum has a period of 1.77 s on Earth. Part A: What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth? Express your answer to two significant figures and include the appr ...

Problem an athlete performing a long jump leaves the ground

Problem: An athlete performing a long jump leaves the ground at a 28.2 degree angle and lands 7.67 m away. A) What was the takeoff speed? B) If this speed were increased by just 5.0%, how much longer would the jump be?

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