Other Physics Answers

A car accelerates from 4m/s to 20m/s in 8s. how far does it travel in time?

A body starts rest and moves with a uniform accelaration of 2m/s2 in straight line

a. what is its velocity after 5s?

b.how far has it travelled in this time?

c.when will it be 100m from the starting point?

A body starts from rest and reaches a velocity of 5m/s after travelling with uniform acceleration for 2s. calculate the accelaration

The velocity of a particle undergoing simple harmonic motion is described by,

𝑣(𝑡) = 2.25m/s cos(0.555 rad/s∙ 𝑡 + 0.450 rad) What is the particle’s maximum acceleration? 

A 6.00 kg aluminum metal is suspended in a rope and partially immersed in water (𝜌𝑤𝑎𝑡𝑒𝑟 = 1000 kg/m3). If the tension in the rope is 4.55 N, what volume of aluminum was immersed? 

A disk is turning with an angular acceleration of 10 m/s^2. What is the tangential

acceleration at 0.50 m from the center of the disk?

A block of mass 30.0 [kg] slides down from the top of the incline. The coefficient of kinetic friction between the block and the incline is 𝜇𝑘 = 0.350. What is the total work done on the block as it reaches the bottom of the incline?

A boulder is moved by applying force to two ropes that are tied to it. The forces 120 lb towards the

west and 150 lb towards south . What is the net force applied to the boulder?

A power station conveyor lifts 500 tons of coal per hour to a height of 80 feet. What average

horsepower is required?

If the coefficient of friction between tires and roadway is 0.50, what is the smallest radius at which

a car can turn on a horizontal road when its speed is 30 miles/hour?