Mechanics | Relativity Answers

a race car enters a flat 200-m radius curve at a speed of 20.0m/swhile increasing its speeds at a constant 2.00 m/s^2. if the coefficient of static friction is 0.700, what will the speed of the car be when the car begins to slide?

an airplane has a speed of 600km/hr with respect to air.It has to fly a distance of 800km northward.In what direction should it fly if a steady wind is blowing at a speed of 120km/hr from the west?what will its speed with respect to the ground be?Draw the relevant diagram for your calculations.

An electron starts from one plate of a charged closely spaced (vertical) parallel plate arrangement with a velocity of 1.94*10^4 m/s to the right. Its speed on reaching the other plate, 2.15 cm away is 4.34*10^4 m/s. If the plates are square with an edge of 24.4 cm, determine the charge on each.

A car with a mass of 1.50x10^3 kg starts from rest and accelerates to a speed of 18.0 m/s in 12.0s. Assume that the force of resistance constant at 400.0 N during this time. What is the average power developed by the car's engine?

A 98.0 N grocery cart is pushed 12.0 m along an aisle by a shopper who exerts a constant horizontal foce of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?

enery conervation in shm explain

An elevator starts from rest with a constant
upward acceleration andmoves 1m in the first
1.9 s. A passenger in the elevator is holding a
7.4 kg bundle at the end of a vertical cord.
What is the tension in the cord as the ele-
vator accelerates? The acceleration of gravity
is 9.8 m/s2 .

An object is dropped from a platform 400 ft high. Ignoring wind resistance, how long will it take to reach the ground?

a bullet of mass 10g moving with a velocity of 500 m/s ,strikes a tree and goes out from the other side with a velocity of 400 m/s .calculate the work done by the bullet in passing through the tree.

this question is based on circular motion in a vertical plane:
The maximum value of acceleration that the human body can safely tolerate for short time intervals is nine times that due to gravity. Calculate the maximum speed with which a pilot could safely pull out of a circular dive of radius 4.00m . the answer: 88.5m/s

Please help me find a solution to this problem. Thank you so very much for your time and effort:)