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Q1. A box slides down a 29° ramp with the acceleration of 1.10m/s2. Determine the coefficient of kinetic friction between box and ramp?
Q2. As part of a safety investigation, two 1700kg cars travelling at 25 m/s are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.3 seconds to stop, and (b) car that hits a concrete barrier and takes 0.3 seconds to stop.
What is mass of the block of ice
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
Which is safer as a road material
Runner A is at first 5.4 km west of a flagpole and is running with a constant velocity of 2.6 km/h due east. Runner B is initially 3.0 km east of the flagpole and is running with the constant velocity of 8.8 km/h due west. What would be the distance ..
What is the new acceleration of box
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
Water flows through a pipe with circular cross section. The fluid has a radius of 5.0 cm and flows at 2.0m/s. The output has a radius of 2.50 cm. find the output velocity.
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
Find out the altitude of the plane
A 2.62 kg mass attached to a light string rotates on the horizontal, frictionless table. The radius of the circle is 0.4207 m, and string can support a mass of 14.70 kg before breaking.
Suppose the speed of light in a vacuum were only 25.5 mi/h. Find the length of the bicycle being ridden at a speed of 20.0 mi/h as measured by an observer sitting on the park bench, given that its proper length is 1.59 m.
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