1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrezito [222]
3 years ago
14

All ball is thrown up with a vertical velocity of 54 m/s and a horizontal velocity of 39 m/s. Calculate how many seconds it will

take for it to reach its peak (assume no air resistance). (Answer to two decimal places).
Physics
1 answer:
VikaD [51]3 years ago
8 0

5.5 s

Explanation:

The time it takes for the ball to reach its maximum height can be calculated using

v_y = v_{0y} - gt \Rightarrow t = \dfrac{v_{0y}}{g}

since v_y = 0 at the top of its trajectory. Plugging in the numbers,

t = \dfrac{(54\:\text{m/s})}{(9.8\:\text{m/s}^2)} = 5.5\:\text{s}

You might be interested in
How do you find the normal force here? I forgot
kakasveta [241]
Normal force is mass x gravity, so mass x 9.81
6 0
3 years ago
Read 2 more answers
A student is trying to calculate the density of a can. He already knows the mass, but he needs to determine the volume as well.
elena-14-01-66 [18.8K]

Answer:

V=Bh

Explanation:

B h is used for rectangular solids and cylinders

6 0
3 years ago
Please answer fast in hindi ​
Ipatiy [6.2K]

Answer:

1. Dheere Dheere (slowly slowly)

2. Har (every)

3. Kal (tomorrow)

4. Mat (don't)

5. Andar (inside)

sorry I wasn't able to write in hindi

8 0
2 years ago
What is the downward pull on an object due to gravity?
Strike441 [17]

Answer:

force of gravity

Explanation:

The force of gravity is that which draws the bodies towards the surface of the Earth.

 The force of gravity brakes the objects that move up and accelerates those that move down. It causes a parabolic movement in what we throw upwards,

3 0
3 years ago
Read 2 more answers
Jenny and Alyssa are members of the cross-country team. On a training run, Jenny starts off and runs at a constant 3.8 m/s. Alys
guapka [62]

Answer:

285 seconds

Explanation:

Jenny speed is 3.8 m/s

Alyssa speed in 4.0 m/s

Alyssa starts after 15 seconds

Find the distance covered by Jenny, when Alyssa starts

Distance=Speed*time

Distance covered by Jenny in 15 seconds= 3.8×15=57m

Relative speed of the two members heading same direction will be;

4.0m/s-3.8m/s=0.2m/s

To find the time Alyssa catch up with Jenny you divide the distance to be covered by Alyssa by the relative speed of the two

Distance=57m, relative speed=0.2m/s  t=57/0.2 =285 seconds

=4.75 minutes

5 0
3 years ago
Read 2 more answers
Other questions:
  • The school is about 1500 m away. you run toward the school with an average velocity of 3 m per sec. how long did it take you to
    11·2 answers
  • Most cars have a coolant reservoir to catch radiator fluid that may overflow when the engine is hot. A radiator is made of coppe
    14·1 answer
  • If an object placed in a fluid experiences a buoyant force equal to the weight of the fluid it displaces, the object will float.
    12·1 answer
  • Ways to stop pollution
    7·1 answer
  • Two solenoids A and B, spaced close to each other and sharing the same cylindrical axis, have 430 and 610 turns, respectively. A
    13·1 answer
  • Help!!!! please!!! i’m not sure what the answer is for both questions please
    8·1 answer
  • the density of brick is 1,600 kg/m3. what is the mass of a brick with a volume of 0.0006 m3? WILL MARK BRAINLIEST
    15·1 answer
  • Bob ran at 5 m/s for 4 seconds and ended up at position 8 m. Where did he start
    11·1 answer
  • If you were to start at the base of a mountain and climb it all the way to the top, how would the climate change?
    10·2 answers
  • Determine the launch speed of a horizontally launched projectile that lands 26.3m from the base of a 19.3m high cliff
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!