Mechanics | Relativity Answers

a ball is launched vertically with a velocity 24.5ms.find
(a) the maximum height of the ball
(b)the time taken to reach this maximum height
(c)the time of flight for this ball.

A ball is launched vertically with a velocity 24.5ms-

a car is driven east for a distance of 50km,then in a direction 30 degrees east of north for 25km.sketch the vector diagram and determine
(a) the magnitude and (b) the angle of the total displacement from its starting point.

When water Density Increased, Water Pressure Force Increase or Decrease? Reply Quickly.

An object thrown vertically up from the ground passes the height 5 m twice in an interval of 10 s.What is its time of flight?

a) 2 forces of magnitude 10N act on an object . state and explain the maximum resultant force and minimum resultant force that can be obtained with these 2 forces.
b)show how would you apply these two forces to get a resultant of 10N

if you drop the ball on a flat surface, and it bounces back up but not as high because energy was lost due to the sound, heat, and the energy absorbed by the surface. How would you measure how much energy the surface absorbed.

A diver springs upward from a board that is 4.50 m above the water. At the instant she contacts the water her speed is 15.4 m/s and her body makes an angle of 66.0 ° with respect to the horizontal surface of the water. Determine her initial velocity, both (a) magnitude and (b) direction.

A criminal is escaping across a rooftop and runs off the roof horizontally at a speed of 5.2 m/s, hoping to land on the roof of an adjacent building. Air resistance is negligible. The horizontal distance between the two buildings is D, and the roof of the adjacent building is 2.0 m below the jumping-off point. Find the maximum value for D.

A bird watcher meanders through the woods, walking 0.983 km due east, 0.116 km due south, and 4.01 km in a direction 34.3 ° north of west. The time required for this trip is 1.825 h. Determine the magnitudes of the bird watcher's (a) displacement and (b) average velocity