AP EAMCET · PHYSICS · Motion In One Dimension
A boat running downstream covers a distance of \(16 \mathrm{~km}\) in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?
- A \(4 \mathrm{~km} / \mathrm{hr}\)
- B \(6 \mathrm{~km} / \mathrm{hr}\)
- C \(8 \mathrm{~km} / \mathrm{hr}\)
- D Data inadequate
Answer & Solution
Correct Answer
(B) \(6 \mathrm{~km} / \mathrm{hr}\)
Step-by-step Solution
Detailed explanation
Rate downstream \(=\left(\frac{16}{2}\right) \mathrm{kmph}=8 \mathrm{kmph} ;\) Rate upstream \(\left(\frac{16}{4}\right) \mathrm{kmph}=4 \mathrm{kmph}\). \(\therefore\) Speed in still water \(=\frac{1}{2}(8+4) \mathrm{kmph}=6 \mathrm{kmph}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- The ratio of displacement to distance for a moving particle isAP EAMCET 2020 Easy
- The shiny metal disk in the electric power meter (along type) rotates due toAP EAMCET 2023 Easy
- Two blocks and of masses and are as shown in the figure. A horizontal force of is required to make slip over . Find the maximum horizontal force that can be applied on so that both and move together. (take )
AP EAMCET 2021 Hard - A gas of mass ' \(\mathrm{m}\) ' and molecular weight ' \(\mathrm{M}\) ' is flowing in an insulated tube with a velocity ' \(2 \mathrm{~V}\) '. If the flow of the gas is suddenly stopped and all the kinetic energy is utilized to compress the gas, the increases in the temperature of the gas is ( \(\gamma\) is ratio of specific heats, \(\mathrm{R}\) is universal gas constant)AP EAMCET 2023 Hard
- It is possible to project a particle with a given velocity in two possible ways so as to make them pass through a point \(p\) at a horizontal distance \(r\) from the point of projection. If \(t_1\) and \(t_2\) are times taken to reach this point in two possible ways, then the product \(t_1 t_2\) is proportional toAP EAMCET 2012 Easy
- As shown in the figure, a block of weight \(20 \mathrm{~N}\) is connected to the top of a smooth inclined plane by massless spring of constant \(8 \pi^2 \mathrm{Nm}^{-1}\). If the block is pulled slightly from its mean position and released, the period of oscillations is
(Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )
AP EAMCET 2023 Medium
More PYQs from AP EAMCET
- The correct order of acidic character of group- 16 hydrides isAP EAMCET 2020 Easy
- Match the following
The correct answer isAP EAMCET 2023 Easy - The formation of ammonia from its constituent elements is an exothermic reaction. The effect of increase temperature on the reaction equilibrium isAP EAMCET 2022 Easy
- A vessel has of oxygen at pressure and temperature . A small hole is made in it so that oxygen leaks out. How much oxygen leaks out if the final pressure is and temperature is ?AP EAMCET 2021 Medium
- Find the coefficient of \(x^5\) in \(\left(1+x+x^2\right)^8\).AP EAMCET 2020 Easy
- Let be such that and
Then the value of isAP EAMCET 2021 Medium