With what initial velocity were the keys thrown

Assignment Help Physics

Reference no: EM13563898

A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00m above. The second student catches the keys 1.50s later. (a) With what initial velocity were the keys thrown? (b) what was the velocity of the keys just before they were caught?

Reference no: EM13563898

Questions Cloud

Bucket hangs at the end of a rope : A 6.75kg bucket hangs at the end of a rope. you pull horizontallyand raise the bucket 4m (over a frictionless pulley)

Estimate the temperature of the filament : A 100-W lightbulb has a resistance of about 12Ω when cold (12 C) and 140Ω when on (hot). Estimate the temperature of the filament when hot assuming an average temperature when hot assuming an average temperature coefficient of resistivity a =0.0060 ..

Calculate the altitude ofsuch a satellite : A geosynchronous orbit is one in which the satellite orbits above the equator, and has an orbital period of 24 hours, so that it is always above the same point on the spinning earth. Calculate the altitude ofsuch a satellite.

Find the speed of the 3000 kg car before the collision : A 2000 kg car moving east at 10.0 m/scollides with a 3000 kg car moving north. The cars stick togetherand move as a unit after the collision, at an angle of 36.0° north of east and at a speed of 4.94 m/s. Find the speed of the 3000 kg car before t..

With what initial velocity were the keys thrown : A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00m above. The second student catches the keys 1.50s later. (a) With what initial velocity were the keys thrown? (b) what was the velocity of the keys just..

Mass spectrometer used to separate two is otopes of uranium : Consider a mass spectrometer used to separate the two isotopes of uranium, 238U3+ and 235U3+. Assume the ions enter the magneticfield region with a speed of 7.10*105 m/s. What value of B isrequired to give a separation of 1.2mm when the ions leave th..

Air circulate from point with less pressure to wards one : Why does air circulate from a point with less pressure towards one with more pressure? (We have a tunnel, and on one side the wind blows faster than at the other)

Determine final speed vf of ramp and final speed v of block : A block of mass m slides at velocity vo across ahorizontal frictionless surface toward a large curved movable rampof mass 3m as shown in Figure 1. The ramp, initially at rest, alsocan move without friction and has a smooth circular frictionless fa..

Two long straight wires are parallel : Two long straight wires are parallel and 7.8 cm apart. Theyare to carry equal currents such that the magnetic field at a pointhalfway between them has magnitude 350 µT. How much current(in A) is needed?

User Account

All Pages