A particle is moving to the left along a variable-height ground. The horizontal component of its velocity has a magnitude of 10 m/s and is constant. The ground height is given by y(x) = -2sin(x) m, where x is in meters.
When the particle is at the highest point on the ground, what is the vertical acceleration ay?

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)