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The gravitational acceleration is g = 10 m/s/s on earth. So how much does a person who is m = 50 kg weigh on earth?
An 18.3 kg potted plant is put on a 24.4 kg wooden table. The table and the floor do not budge. a. What is the normal force of the table on the potted plant?
b. What is the normal force of the floor on all of the table legs in total?
A Boeing 747-8i jet needs 1680 m of runway to land. If its loaded mass is 3.33 × 10^5 kg and it lands at a speed of 275 km/hr, what frictional force is needed to stop it?
. A wooden ramp has a coefficient of static friction of 0.408 and an angle of inclination of 36.2°. A 4.74 kg book is placed on the ramp. Does the book move? Show why or why not.
A particle moves in a slowly varying magnetic field 𝐵⃗ = 𝐵𝑧(𝑥)kcap and a uniform magnetic field and in small electricfield 𝐸⃗ = 𝐸𝑦jcap. Calculate the drifts. Show that change in perpendicular kinetic energy can be accounted for by the drift along the electric field. Calculate the rate of change of (1/2)m(V perpendicular)^2
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A car of mass 9500kg is moving up a cliff from rest with a velocity of v=(3t^2 + 2t)î +5j m/s for 1 minute.If the slope of the cliff is 1,what distance was covered by the car in 1minute
Calculate the work done in displacing a body with a force,f=(30î + 40j)N through S=(2tî-4tj)m between t1=2 second and t2=5 seconds
The ratio of the orbital velocity at low altitude around a planet to the escape velocity from the surface of the planet is
If the kinetic energy of a satellite is x J,what is its gravitational potential energy?
Two planets P and Q of the same mass.The radius of P is twice the radius of Q.vP and vQ are escape velocities from planet P and Q respectively.Find their escape velocities?
