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Juliette [100K]
2 years ago
8

It is observed that the time for the ball to strike the ground at b is 2.5 s. determine the speed at which the ball was thrown.

Physics
1 answer:
Alika [10]2 years ago
6 0
Ergrexgehtenhyrnsehtrsjyrrsjjrt
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Will award brainliest and upvote if you can help answer! ​
erica [24]

Answer:

Omqnp

Explanation:

I have done this before and got it correct

7 0
2 years ago
A 1180kg car is moving at a speed of 85.5 km/h. Find the force needed to bring the car to rest in a distance of 300m
yarga [219]

Answer:

1110 N

Explanation:

First, find the acceleration.

Given:

Δx = 300 m

v₀ = 85.5 km/h = 23.75 m/s

v = 0 m/s

Find: a

v² = v₀² + 2aΔx

(0 m/s)² = (23.75 m/s)² + 2a (300 m)

a = -0.94 m/s²

Find the force:

F = ma

F = (1180 kg) (-0.94 m/s²)

F = -1110 N

The magnitude of the force is 1110 N.

3 0
3 years ago
Experiments and investigations must be ____. a. approved b. repeatable c. not reproducible d. accepted
deff fn [24]
Experiments and investigations must be B. Repeatable.
7 0
3 years ago
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How is net force determined if two students moving a piano exert force in the same direction
anyanavicka [17]
The net force is determined is basically who is pushing harder in a specific direction.Like since there bith pushing in the same direction the net force is in the direction that they are pushing.
5 0
3 years ago
You're using a wedge to split a log. you are hitting the wedge with a large hammer to drive it into the log. it takes a force of
KIM [24]
The work performed on an object is the force multiplied by the distance it is moved, provided the movement is parallel to the force.  Since that is the case here, we can get the work by W=Fd=1900N x 0.23m = 437J.  This energy is used to split the wood.
6 0
3 years ago
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