Mechanics | Relativity Answers

Good morning is it possible to calculate when a dog stops accelerating with the
Dogs weight in kg
The distance traveled
And the time taken to travel

A ball of mass 0.25 kg moving horizontally with a velocity 20 ms-1 is struck by a bat. The duration of contact is 10-2s. After leaving the bat, the ball moves at a speed of 40 ms-1 in a direction opposite to the original direction of motion. Calculate the average force exerted by the bat.

A stone is thrown vertically upward at a speed of 29.10 m/s at time t=0. A second stone is thrown upward with the same speed 2.190 seconds later. At what time are the two stones at the same height?

A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. How much work is done on the 68.0 kg rescue by the force lifting him during each stage?

A car is travelling with uniform motion with a total frictional resistance of 2.8 × 103 N acting in a direction opposite to the motion of the car. What is the force acting on the car in the direction of motion?[1 K, 1 Inq]

A 45 n toolbox is dragged horizontally at constant speed by a rope making an angle of 40 with the floor the tension in the rope is 20 n, what is the coefficient of kinetic friction?

A mass m moves with velocity v and collides with another mass 2m initially at rest. After collision the first moves with velocity v/√2 in the direction perpendicular to initial direction of motion. Find the speed of 2nd mass after collision.

A 1.0- kg wheel with moment of inertia about its axis I = MR^2 is rolling without slipping on the horizontal ground. Its center of mass has an acceleration of 5.0 m/s^2. The frictional force exerted on the wheel from the ground is ?

you hit a puck with a hockey and the puck slides across the ice and gradually slows down. After the puck leaves the stick, the correct list of forces acting on the puke are

A hot-air balloon is ascending at the rate of 14 m/s at a height of 95 m above the ground when a package is dropped. (a) How long does the package take to reach the ground? (b) What is the speed of the package?