Motion Test - 3...

A stone is dropped from the top of a tower of height $$49$$ $$m$$. Another stone is thrown up vertically with velocity of $$24.5\ m/s$$ from the foot of the tower at the same instant. They will meet in a time of

Two balls A and B are thrown simultaneously. A vertically upwards at a speed of $$15$$ m/s from the ground and B, vertically downwards from a height of $$30$$ m at the same speed along the same line of motion. They meet after a time of: 

A body is projected vertically upwards with a velocity $$u$$. It crosses a point in its journey at a height $$h$$ meter twice, just after $$1$$ and $$7 $$ seconds .The value of $$u$$ in $$ms^{-1}$$ is $$ (g= 10ms^{-2})$$

The displacement ($$x$$) versus time ($$t$$) curve for two particles is as shown in figure. Which of the following statements is correct for time interval between $$0$$ to $$10$$ s?

A body moving with uniform acceleration in a straight line is at points A, B, C, D after successive equal intervals of time. The distance AD is equal to:

A ball is released from the top of a tower of height $$h\ m$$. It takes $$T$$ seconds to reach the ground. What is the position of the ball in $$\dfrac{T}{3}$$ second?

The displacement-time graph of motion of a particle is shown in the figure. The ratio of the magnitudes of the speeds during the first two seconds and the next four seconds is:

A ball is thrown vertically upwards with a speed of $$10\ ms^{-1}$$ from the ground at the bottom of a tower $$200$$ $$m$$ high. Another is dropped vertically downward simultaneously, from the top of a tower. If $$g=10\ ms^{-2}$$ the time interval after which the projected body will be at the same level as the dropped body is:

A particle starts with a velocity $$200\ cm/s$$ and moves in a straight line with a retardation of $$10\ cm/s^{2}$$. Its displacement will be $$1500\ cm$$:

A ball is released from the top of a tower of height $$h$$ m. It takes $$T$$ s to reach the ground. What is the position of the ball in $$\dfrac{T}{3}$$ s?