Abusy chipmunk runs back and forth along a straight line of acorns that has been set out between its burrow and a nearby tree. at some instant, it moves with a velocity of −1.29 m/s−1.29 m/s . then, 2.91 s2.91 s later, it moves with a velocity of 1.77 m/s1.77 m/s . what is the chipmunk's average acceleration during the 2.91 s2.91 s time interval?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Why is metal often used for cooking pan?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity