A van is traveling at a constant speed of 54km. h^-1 in a 40km. h^-1 and the policeman starts his car from rest just as the van passes him. the police car accelerates at 2m. s^-2 until it reaches a maximum velocity of 20m. s^-1. Which vehicle between the van and police car will be ahead at the time of 10m. s^

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands? a. no b. yes explain

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2