Suppose you increase your walking velocity from 1 m/s east to 3 m/s east in a period of 1 s. What is your acceleration?

In a vernier instrument the main scale is in 1/2 mm divisions .vernier is made by redividing 19 such divisions into 20 equal parts. calculate the least count of the instrument.

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?