Question

Acceleration due to GRAVITY
1 point
25. On Earth, acceleration due to gravity is 9.8 m/s/s. If an object falls on
Earth for 10 seconds, what is its increased velocity. (HINT: delta velocity =
acceleration * time) *
98 m/s
0.2 m/s
19.8 m/s
0 m/s
26. TRUE or FALSE: ALL objects fall at the same rate IN A VACUUM where

Answer 1

25. For an object in free fall, $v-v_{0} = at$, where $v$ is the final velocity, $v_{0}$ is the initial velocity, $a$ is the acceleration, in this case, acceleration due to gravity and $t$ is the time elapsed. Since $v - v_{0} = \Delta v$, $\Delta v = at$, $\Delta v = 9.8 \times 10 = 98ms^{-1}$

26. Since there is no air resistance in a vacuum, all objects will fall at the same rate. So the answer will be TRUE.

Answer 2

Answer:

See below

Explanation:

1)

Given:

Acceleration due to gravity = g = 9.8 m/s

Time = t = 10 s

Required:

Δv = ?

Formula:

Δv = g × t

Solution:

Δv = 9.8 × 10

Δv = 98 m/s

2) True

All objects will fall at the same rate in vacuum because there is no air-resistance it it.

$\rule[225]{225}{2}$

Hope this helped!

~AH1807