A block slides along a frictionless surface with a constant acceleration of 2 m/s2. At time t = 0 s the block is at x = 5m and travelling with a velocity of 3 m/s. a) Where is the block at t = 2 seconds? b) What is the block’s velocity at 2 seconds? c) Where is the block when it’s velocity is 10 m/s? d) How long did it take to get to this point?
Here is an illustration of the setup. The variables we know are: x0 = 5 m v0 = 3 m/s a = 2 m/s2 Part a) x = x0 + v0t + ½at2 Substitute t = 2 seconds for t and the appropriate values of x0 and v0. x = 5 m + (3 m/s)(2 s) + ½(2 m/s2)(2 s)2 x = 5 m + 6 m + 4 m x = 15 m The block is at the 15 meter mark at t = 2 seconds.
s
Asked 14 days ago|2/9/2024 12:09:33 PM
Updated 14 days ago|2/9/2024 12:32:06 PM
Rating
4
Here is an illustration of the setup.

The variables we know are:
x0 = 5 m
v0 = 3 m/s
a = 2 m/s2

Part a)
x = x0 + v0t + ½at2

Substitute t = 2 seconds for t and the appropriate values of x0 and v0.

x = 5 m + (3 m/s)(2 s) + ½(2 m/s2)(2 s)2
x = 5 m + 6 m + 4 m
x = 15 m

The block is at the 15 meter mark at t = 2 seconds.
Added 14 days ago|2/9/2024 12:29:57 PM
Rated good by Taurus28
4
Part b)
v = v0 + at
v = (3 m/s) + (2 m/s2)(2 s)
v = 3 m/s + 4 m/s
v = 7 m/s

The block is travelling 7 m/s at t = 2 seconds.
Added 14 days ago|2/9/2024 12:30:19 PM
Rated good by Taurus28
4
Part C

v^2 = v0^2 + 2a(x – x0)
(10 m/s)^2 = (3 m/s)^2 + 2(2 m/s2)(x – 5 m)
100 m^2/s^2 = 9 m^2/s^2 + 4 m/s^2(x – 5 m)
91 m^2/s^2 = 4 m/s^2(x – 5 m)
22.75 m = x – 5 m
27.75 m = x

The block is at the 27.75 m mark.
Added 14 days ago|2/9/2024 12:31:42 PM
Rated good by Taurus28
4
Part D
v = v0 + at
10 m/s = 3 m/s + (2 m/s2)t
7 m/s = (2 m/s2)t
7 2 s = t

It takes 7 2 s or 3.5 s to get to the 27.75 m mark.
Added 14 days ago|2/9/2024 12:32:06 PM
Rated good by Taurus28

when was philippines discovered?
Weegy: In 1521 philippines was discovered. (More)
Asked 20 days ago|2/3/2024 10:17:59 AM
what is the first virus in the philippines?
Weegy: ILOVEYOU was the first computer virus in the Philippines. (More)
Asked 20 days ago|2/3/2024 10:14:46 AM
What are the positive effects of tribalism?
Weegy: Positive effects of tribalism can include a strong sense of community, shared identity, [ and mutual support within a group. ] (More)
Asked 20 days ago|2/3/2024 10:13:56 AM
Who is the first person in the Philippines?
Weegy: The Philippines, officially known as the Republic of the Philippines, is a sovereign island country in Southeast Asia situated in the western Pacific Ocean. User: What is Philippines old name? (More)
Updated 20 days ago|2/3/2024 10:57:00 AM
Negrito group is the first person in the Philippines.
Added 20 days ago|2/3/2024 10:54:21 AM
Rated good by Taurus28
The Philippines old name is Las Islas Filipinas .
Added 20 days ago|2/3/2024 10:57:00 AM
Rated good by Taurus28
What is globalization?
Weegy: Globalization is the process of international integration arising from the interchange of world views, products, ideas and other aspects of culture. User: What is milky way? Weegy: The Milky Way is a BARRED SPIRAL galaxy. (More)
Updated 20 days ago|2/3/2024 10:54:05 AM
38,901,130
Popular Conversations
What does PCT mean in basketball
Weegy: Constructed railroads were made by Private investors. User: What was the spoils system? Weegy: Spoil system ...
In The Proposal, after Stepan brings Ivan back into the house, what's ...
Weegy: The second thing that Ivan and Natalya fight about in "The Proposal" is: Their dogs. User: In The Proposal, as ...
which of the following is a con of hydropower
Weegy: Hydropower is electricity generated using the energy of moving water.
Recharge is the transfer of water into the ground to become ground ...
Weegy: Recharge is the transfer of Surface water into the ground to become ground water. User: While hiking in a ...
FEMA is-241.c exam
Weegy: What is your question? User: Which of the following is a key element for effective decision making Weegy: ...
S
L
P
Points 1355 [Total 3084] Ratings 1 Comments 1345 Invitations 0 Offline
S
L
Points 1020 [Total 2718] Ratings 1 Comments 1010 Invitations 0 Offline
S
L
P
1
Points 901 [Total 2511] Ratings 7 Comments 831 Invitations 0 Offline
S
L
Points 545 [Total 1356] Ratings 1 Comments 535 Invitations 0 Offline
S
L
Points 494 [Total 494] Ratings 7 Comments 424 Invitations 0 Offline
S
L
L
Points 110 [Total 6757] Ratings 2 Comments 90 Invitations 0 Offline
S
L
1
1
1
1
Points 70 [Total 2225] Ratings 7 Comments 0 Invitations 0 Offline
S
L
Points 62 [Total 1418] Ratings 1 Comments 52 Invitations 0 Offline
S
L
Points 34 [Total 3448] Ratings 1 Comments 24 Invitations 0 Offline
S
L
R
R
L
Points 11 [Total 6099] Ratings 0 Comments 11 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.