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A child launches an air powered toy rocket up into the air giving it an initial velocity of 6m/s at an angle of 80degree above the horizontal. If we consider the coordinate system as shown in Figure 1 (where the launch point is at the origin) and neglecting air resistance,
a) What is the velocity (both x and y component) of the rocket 0.8seconds after it has been launched?
b) How long after the rocket is launched does it take for the rocket to hit the ground?
A 250 g block of wood hangs from a light string 0.78 m long. The block is shot with a bullet of mass 4.2 g, what was the velocity of the bullet just before it hit the block
A ball is thrown directly downward with an initial speed of 8.60 m/s, After what time interval does it strike the ground
You have an organ pipe that resonates at frequencies of 800, 1120, and 1440 Hz but nothing between these. What is the fundamental frequency for this pipe
A model airplane of mass 0.870 kg is flying at constant speed in a horizontal circle at one end of a 28.0 m cord and at a height of 17.0 m. What is the acceleration of the plane
Find out the total work done on the car by the external forces.
The centripital force of 45N is required to resolve a stone of mass 100g along a circular path of radius 50cm. Find the constant speed of the stone
a basketball player grabbing a rebound jumps 79cm vertically. how much total time (ascent and descent) does the player spend
A vertical electric field of magnitude 2.45 104 N/C exists above the Earth's surface on a day when a thunderstorm is brewing. Determine the electric flux through the bottom of the car
A point particle with charge q = 86 µC is placed at a corner of a cube of edge a = 12 cm, What is the flux through each of the other cube faces
q1. a 78.9 kg man steps off a platform 4.57 m above the ground. he keeps his legs straight as he falls but at the
A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.74 m/s along the length ( 1.76 m) of the table at one end, What is the angle of inclination
An astronaut (mass of 100 kg, with equipment) is headed back to her space station at a speed of 0.750 m/s but at the wrong angle. What is her new direction (relative to the initial direction)
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