Question

A body is thrown upwards with an initial velocity of 100 m/s. after 1 sec what is the velocity of the body ?​

Answer 1

Answer:

90 m/s

Step-by-step explanation:

step 1: write newton's first eq.

v=u+at

step 2: put the values in eq.

v=100+(-10)(1)

90 m/s

Answer 2

Answer: Velocity of the body is 90.2

Step-by-step explanation:

Given data:

Initial velocity = 100 meter/sec

Gravitational acceleration = - 9.8 meter/second square

Time = one second

Required : final velocity

By using 1st equation of motion

Vf = Vi + at

Vf = 100- (9.8x1)

Vf = 100- 9.8

Vf = 90.2 meter/ second