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
xeze [42]
1 year ago
6

A dog running to the right at 4 m/s sees a ball and accelerates steadily to catch it. The dog accelerates to the right at a rate

of 0.21 m/s^2 and catches the ball after 3.8s. What was the dogs velocity when it caught the ball? *Assume here that running to the right is positive and running to the left is negative.
A- 7.96
B- 10.569
C- 6.782
D- 4.798
E- none
Physics
1 answer:
antoniya [11.8K]1 year ago
6 0

Answer:

D.-4.798m/s

Explanation:

Greetings !

Given values

u= 4ms \\ a = 0.21ms {}^{2}  \\ t = 3.8sec

Solve for V of the given expression

Firstly, recall the velocity-time equation

v = u + at

plug in known values to the equation

v = (4) + (0.21)(3.8)

solve for final velocity

v = 4.792ms

Hope it helps!

You might be interested in
Scalars are used to solve projectile motion problems because they allow the analysis of one direction at a time for two-dimensio
Korolek [52]
The statement is false. Vectors are used to solve projectile motion problems because they allow the analysis of one direction at a time for two-dimensional motion. Scalar quantities can be used to analyze linear motion problem, but not projectile motion.
4 0
3 years ago
A ____________ is a machine which contains a lever and a wedge that combine to make work easier.
Katarina [22]

Answer: Simple machine

  • The movable inclined plane is called wedge.
  • A simple machine is a machine, which contains lever and wedge, is used to push the things apart.  
  • The mechanical advantage of a wedge is given by the ratio of length of its slope to its width.
3 0
3 years ago
Can I also get help on this??
Xelga [282]

Answer:

25

Explanation:

8 0
2 years ago
Read 2 more answers
Remains of ancient life are most often preserved through which process?
ki77a [65]
Well, it would be fossilization. <- If I spelled it correctly.
6 0
3 years ago
26. A transformer increases or decreases
uysha [10]

Answer:

Explanation:

Single-phase transformers can operate to either increasing or decreasing the voltage applied to the primary winding. When a transformer is used to “increase” the voltage on the secondary winding with respect to the primary, it is called a Step-up transformer

7 0
3 years ago
Other questions:
  • Which type of mirror produces images that are always upright and at the same distance from the mirror as the object is?
    8·2 answers
  • If you want points for your account just answer yes
    13·1 answer
  • Plz answer #2 plz this is 8th grade science / physics
    14·1 answer
  • We’re measuring the velocity, so that we can find the change in kinetic energy. Where should you place the photogate to measure
    9·1 answer
  • A coil of wire with a current is called a(n)
    6·1 answer
  • A solar water heater for domestic hot-water supply uses solar collecting panels with a collection efficiency of 40.0 % in a loca
    5·1 answer
  • A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is in the air, which statement
    11·1 answer
  • An oil layer that is 5.0 cm thick is spread smoothly and evenly over the surface of water on a windless day. A light ray from th
    8·1 answer
  • Determine the force between two long parallel wires, that are separated by a dis- tance of 0.1m the wire on the left has a curre
    14·1 answer
  • Which of the following is/are ALWAYS true concerning collision and transition state theory?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!