An object moves in a straight line, starting from rest. There are two stages in the journey: a. Is gear speed uniformly for 2.0 seconds and attains a speed of 8.0 metre per second.
B. Is continues at this speed for a further 1.5 seconds
Draw a sketch graph of Speed Against Time

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm