A ball of mass 0.6kg is projected vertically upwards with speed 22.4 m s- from a point which is 1.5 m above horizontal ground. The ball moves freely under gravity until it reaches the ground. The ground is soft and the ball sinks 2.5 cm into the ground before coming to rest. The ball...
<p>To find the time taken by a particle projected vertically upwards to reach its highest point, we can use the following steps:</p><p>1. <strong>Identify the Initial Velocity (u)</strong>: The particle is projected with an initial velocity of \( u =
A ball is thrown vertically upwards. Ignoring air resistance, which of the following statements is true about the ball's motion? A. The ball has a constant acceleration throughout its motion B. The velocity of the ball is zero at the highest point, so the acceleration is also zero C. ...
A ball is projected vertically up wards with a velocity of 100 m/s. Find the speed of the ball at half the maximum height.(g=10m/s2) View Solution α View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class...
A ball thrown vertically upwards reaches half its maximum height for the first time in 0.6 s. Free-fall acceleration is g = 10 m/s^2. Find the maximum height the ball will rise to. A ball is thrown vertically upward with an initial velocity of 20 m/s? Find...
A ball is thrown vertically upwards with an initial velocity of 20 m/s. Calculate the maximum height the ball reaches before falling back down.相关知识点: 试题来源: 解析 20.4 m 1. **已知条件**:初速度 \( v_0 = 20 \, \text{m/s} \),重力加速度 \( g = 9.8 \, \text{m/s}^2...
The ball is projected vertically down with a velocity of 10sqrt(3)m/s from a height of 20m .On the hitting the ground if it loses 40% of its energy the height to which it bounces is (g=10ms^(-2)) View Solution A helicopter is rising vertically up with a velocity of5ms–1. A...
Example A ball is thrown vertically upwards with a speed of 40 ms-'Calculate the time interval between the instants that the ball is20 m above the point of release. 相关知识点: 试题来源: 解析 Using (4) with a =-g=-1020= 40t-0.5×10xwhere t seconds is the time passed since the ...
85 mA particle is projected vertically upwards from the top of tower with velocity 10 m/s. It reaches the ground in 5 s. find Average speed & average velocity of particle.
Answer to: A ball is projected straight up with an initial velocity of 20 m/s. After 3 seconds its velocity will be: A. -20 m/s. B. -10 m/s. C. 0...