Ann is driving down a street at 55 km/h. Suddenly a child runs into the street. If it takes Ann 0.753 s to react and apply the brakes, how far will she have moved before she begins to slow down?
Answer in units of m.

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?

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

If anyonee has done the momentum lab practical in physics can you give me the answers i am s lostt rnn : (