Question
A person covers a distance of 360 km in 4 hours. If the
person's speed decreases by 16 (2/3)% and the distance to be covered increases by 25%, how long will it take to cover this new distance?Solution
Initial speed = (360/4) = 90 km/h New speed = (5/6) x 90 = 75 km/h (because 16 (2/3)% = 1/6 ) New distance = 1.25 x 360 = 450 kms New time = (450/75) = 6 hours
How long does an image remain on the retina after the object is removed?
In the equation of motion ( v = u + at ), ( u) represents:
Which one of the following is not a function of the liver?
Which of the following is not a recognized type of inertia?
A train approaches a stationary observer with a speed of 36 km/h. It emits a sound of frequency 500 Hz. If the speed of sound is 340 m/s, what is the ap...
What is the SI unit of magnetic flux?
Light from a point source in air falls on a spherical glass surface (n=1.5 c and radius of curvature = 10 cm). The distance of the light source from the...
What is the SI unit of magnetic flux?
A ball is projected from the ground at 45°. It strikes a vertical wall and rebounds with the same speed making the same angle on the other side. If th...
What is the current flowing through a 24 Ω resistor connected to a 12 V battery?