You are driving a foreign car, and the speedometer uses only units of
kilometers per hour (km/h). You see a sign showing a speed limit of 25 mi/h.
What is that speed in kilometers per hour? (1 mi = 1.61 km)
O A. 40 km/h
O B. 25 km/h
O C. 15 km/h
O
D. 16 km/h

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.