A ball is thrown upwards with 10 m/s velocity after 1 sec, what is its height?
A) 10 m
B) 5 m
C) 15 m
D) 0 m
1 Answers
Talk Doctor Online in Bissoy App
The length of a cuboid is 2 cm more than its height, whereas its breadth is 2 cm less than the height. Its height is equal to the side of a square hav
Correct Answer - 960 `cm^(3)`
2 Answers 3 views
The height (in meters) at any time t (in seconds) of a ball thrown vertically varies according to equation `h(t)=-16t^(2)+256t`. How long after in sec
Correct Answer - `8 sec`
2 Answers 4 views
A body projected vertically upwards, reaches a height of 180 m. Find out `[g=10ms^(-2)]` (i) intial velocity of body (ii) time taken by body to reach
Correct Answer - (i)`60m//s` (ii) 6 sec (iii) 12 sec (iv )160 m (v)`-20m//s` (vi) 2 sec, 10 sec (vii) 6 sec
2 Answers 1 views
A particle is projected vertically upwards from the earth. It crosses the same point at t=2 sec and t=8 sec. Find out `[g=10 ms^(-2)]` (i) the time fo
Correct Answer - (i) 10 sec (ii) 50 m//s (iii) 125 m (iv) 80 m
2 Answers 2 views
A particle when projected vertically upwards from the ground, takes time T to reach maximum height H. Find out (i) The height of the particle from gro
Correct Answer - (i) `3H//4,8H//9,8H//9,15H//16, 1:3,1:8,1:8,1:15` (ii) 1 : 7
2 Answers 3 views
A ball is thrown from a comer of room of length 20 m and height 5 m such that the ball moves along the length of room just touching the ceiling and dr
Correct Answer - (i)`45^(@)` (ii)`10sqrt(2)m//s` (iii) 2 sec
2 Answers 3 views
A ball of mass 2 kg is moving with velocity 20 m/sec strikes with the surface and rebounds with same speed, if time of contact is 0.1 sec then calcula
Correct Answer - 800 N
2 Answers 1 views
A ball is thrown vertically upwards with velocity 10 m/s from a trolley moving horizontally with velocity of 8 m/s.
Vertical velocity of ball uy=v1 Horizontal velocity of ball ux=v2 Horizontal range of projectile R=2uxuy/g ⟹ R= 2v1v2/g = 2* 10*8/ 10= 16 m
2 Answers 1 views
A ball is thrown vertically upwards with velocity 10 m/s from a trolley moving horizontally with velocity of 8 m/s.
2 Answers
1 views
A ball is thrown vertically upwards with a speed of `10 m//s` from the top of a tower 200 m height and another is thrown vertically downwards with the
Correct Answer - C `Deltat=(2u)/(g)`
2 Answers 1 views