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Q1. A 62 kg diver jumps off a 10.2 m tower.
(a) Find the diver's velocity when he hits the water.
(b) The diver comes to a stop 2.00 m below the surface. Find out the net force exerted by the water.
Q2. A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
The coefficient of static friction
The rocket fires for 10 mins , after that the asteroid is moving at 30 degrees to its original path at the speed of 18 km/h/ Find its average acceleration.
How to find the position and height of an image
A tennis ball is thrown toward a vertical wall with a speed of 22.0 m/s at the angle of 40.0° above the horizontal. The horizontal distance between the wall and the point where the tennis ball is released is 28.0 m.
Find the minimum volume of concrete (y = 23.6 kN/m3) needed to keep the gate (1 m wide) in a closed position; l = 2 m. Note the hinge at the bottom of the gate. Explain briefly.
An archer puts a 0.54 kg arrow to the bowstring. An average force of 202 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
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An object with a height of 42 cm is placed 2.2 m in front of a concave mirror with a focal length of 0.45 m. Determine the location and magnification of the image produced by the mirror, using the mirror and magnification equations.
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
A 30-06 caliber hunting rifle fires a bullet of mass 0.0146 kg with the velocity of 314 m/s to the right. The rifle has a mass of 2.49 kg.
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