Mechanics | Relativity Answers

One Newton equal to

A. One kg multiplied by meter per second squared

B. One kg multiplied by acceleration due to gravity

Calculate the experimental acceleration due to gravity from the following data.
Time for travel 1: 0.795 s
Time for travel 2: 0.810 s
Time for travel 3: 0.782 s
Distance for fall: 300.0 cm

Calculate the speed (in m/s) a spherical rain drop would achieve falling from 1.20 km in the absence of air drag and with air drag. Take the size across of the drop to be 2 mm, the density to be 1.00 ✕ 103 kg/m3, and the surface area to be πr2. (Assume the density of air is 1.21 kg/m3.)

Suppose a treadmill has an average acceleration of 0.0047 m/s^2. How much does its speed change after 4.7 seconds?

You and your friend both having equal masses of 50kg are seperated by a mass of 1m.calculate the force of gravitation between you and your friend

an object of mass 20 kg is pulled out with the force of 1:50 newton on an inclined plane for the distance of 3 metre the plane mai an angle of 30 degree with the horizontal and the coefficient of kinetic friction between the object and the plane is 0.3 draw the free body diagram and calculate the work done by each force.

find the magnitude and direction of the resultant of a 10N-Force that acts angle 40 clockwise from the +x- axis, a 7-N force that acts an angle of 180 clockwise from the + y-axis, 5 -N force that acts at an angle 90 Clockwise from the +y-axis.

Celia Mae starts a ball rolling up a 4.5° hill on a planet where g is half of that on Earth with a velocity of 3.2 m/s. Once she starts it moving, she just watches it roll.

A. How far does the ball roll up the incline before it stops?
B. How long does it take the ball to stop?
C. How far does the ball roll up the incline in 2.5 seconds?

A torpedo fired from a submerged submarine is propelled through the water with a speed of 20 m/s and explodes on impact with a target 2000m away. If the sound of the impact is heard 101.4 s after the torpedo was fired, what is the speed of sound in water?

A car is parking safely and stationary on a slope with a small angle relative to the horizontal direction. This is because the static friction force experienced by the car is larger than the gravity force component along the slope. true or false