What maximum vertical height does the child rise

Reference no: EM13649035

At the local playground a child on a swing has a speed of 2.02 m/s when the swing is at its lowest point. (a) To what maximum vertical height does the child rise, assuming he sits still and "coasts"? Ignore air resistance. (b) How do your results change if the initial speed of the child is halved?

Reference no: EM13649035

Questions Cloud

Wheels rotational inertia-engineer is to achieve their goal : Engineers redesign a car's wheels with the goal of decreasing eachwheel's angular momentum by 30% for a given linear speed for the car. Other design considerations require that the wheel diameter gofrom 38 {\rm cm} to 36 cm.If the old wheel had a ..

A speeder is pulling directly away and increasing : A speeder is pulling directly away and increasing his distance from a police car that is moving at 23 m/s withrespect to the ground. The radar gun in the police car emits anelectromagnetic wave with a frequency of 9.00*109 Hz.

An electron is shot into one end of a solenoid : An electron is shot into one end of a solenoid. As itenters the uniform magnetic field with in the solenoid, its speedis 840 m/s and its velocityvector makes an angle of 30° with the central axis of the solenoid.

Suspension holding cylinder pulls up on cylinder with force : A 0.70-kg disk with a rotational inertia given by MR2/2 is free torotate on a fixed horizontal axis suspended from the ceiling. A string is wrapped around thedisk and a 2.0-kg mass hangs from the free end. I

What maximum vertical height does the child rise : At the local playground a child on a swing has a speed of 2.02 m/s when the swing is at its lowest point. (a) To what maximum vertical height does the child rise, assuming he sits still and "coasts"? Ignore air resistance. (b) How do your results cha..

What is the minimum angular velocity that willallow woman : A 50kg woman is in a rotor with a 2m radius, laying against theinner surface. The friction between the woman’s sweater andthe surface is μs = 0.5. (a) The rotor begins spinning with aconstant angular acceleration α, and when the rotor reachesenoug..

A baseball catcher moves his glove away : A baseball catcher moves his glove away from a 36.0 m/s fastball as he catches it. If the average force he exerts on the ball is 1.05*103 N, how far does the glove move? Assume constant deceleration of the ball, which has a mass of 0.142 kg.

Calculate the self-inductance of the solenoid : A solenoid has 137 turns of wire uniformly wrapped around anair-filled core, which has a diameter of 6 mm and a length of 8.5cm. The permeability of free space is 1.25664 × 10−6N/A^2 . Calculate the self-inductance of the solenoid.

Ratio of aluminumwires diameter to copper wires dimeter : An aluminum wire has the same resistance as acopper wire of the same length. Find the ratio of the aluminumwire's diameter to the copper wire's diameter.

User Account

All Pages